Pennsylvania Governor Ed Rendell addresses the 2008 Jefferson Jackson Dinner hosted by the Florida Democratic Party in Hollywood, Florida Saturday, June 14, 2008. Rendell was the key speaker at the dinner as the party attempts to unite and back Democratic presidential candidate Barack Obama on the road to the White House. (AP Photo/Hans Deryk)
Pennsylvania's governor, Ed Rendell, shows his support for democratic presidential candidate Barack Obama by wearing a button given to him while he addresses the 2008 Jefferson Jackson Dinner hosted by the Florida Democratic Party in Hollywood, Florida Saturday, June 14, 2008. Rendell was the key speaker at the dinner as the party attempts to unite and back Obama on the road to the White House. (AP Photo/Hans Deryk)
Pennsylvania Governor Ed Rendell shows his support for democratic presidential candidate Barack Obama by wearing a button given to him while he addresses the 2008 Jefferson Jackson Dinner hosted by the Florida Democratic Party in Hollywood, Fl., Saturday, June 14, 2008. Rendell was the key speaker at the dinner as the party attempts to unite and back Obama on the road to the White House. (AP Photo/Hans Deryk)
Democratic presidential candidate Sen. Barack Obama D-Ill., shakes hands through the fence at the airport in Quincy, Ill., Saturday, June 14, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., gets in the car after filling sandbags in Quincy, Ill. Saturday, June 14, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., shakes hands with people through the fence at the Quincy Airport before going to a sandbag station in Quincy, Ill. Saturday, June 14, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., right, fills sandbags surrounded by the media at a sandbag station in Quincy, Ill. Saturday, June 14, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., center, talks to volunteers with Quincy, Ill., Mayor John Spring, left, and Illinois State Sen. John Sullivan at a sandbag station in Quincy, Ill., Saturday, June 14, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., shakes hands and says hi at a sandbag station in Quincy, Ill., Saturday, June 14, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., fills sandbags at a sandbag station in Quincy, Ill., Saturday, June 14, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., walks in Quincy, Ill., after helping to fill sandbags, Saturday, June 14, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., fills sandbags with volunteers at a sandbag station in Quincy, Ill., Saturday, June 14, 2008. While flooding around the Midwest is more serious in Iowa and parts of Wisconsin, the water is rising in Illinois and more water is on the way. (AP Photo/Seth Perlman)
Alvin Borntrager, 10, left, and Noah Borntrager, right, continue to fill sandbags while Democratic presidential candidate Sen. Barack Obama D-Ill., center, speaks to reporters after filling sandbags with volunteers at a sandbag station in Quincy, Ill., Saturday, June 14, 2008. While flooding around the Midwest is more serious in Iowa and parts of Wisconsin, the water is rising in Illinois and more water is on the way. (AP Photo/Seth Perlman)
Alvin Borntrager, 10, right, looks on as Democratic presidential candidate Sen. Barack Obama D-Ill., left, fills sandbags with volunteers at a sandbag station in Quincy, Ill., Saturday, June 14, 2008. While flooding around the Midwest is more serious in Iowa and parts of Wisconsin, the water is rising in Illinois and more water is on the way. (AP Photo/Seth Perlman)
Democratic presidential candidate Sen. Barack Obama D-Ill., fills sandbags with volunteers at a sandbag station in Quincy, Ill., Saturday, June 14, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., center, shakes hands with volunteers at a sandbag station in Quincy, Ill., Saturday, June 14, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., gets a hug from a volunteer at a sandbag station in Quincy, Ill., Saturday, June 14, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., left, shakes hands with volunteers at a sandbag station in Quincy, Ill., Saturday, June 14, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., shakes hands with volunteers at a sandbag station in Quincy, Ill., Saturday, June 14, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., talks with Quincy, Ill., Mayor John Spring, center, and Illinois State Sen. John Sullivan left, as he prepares to fill sandbags at a sandbag station in Quincy, Ill. Saturday, June 14, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., center, fills sandbags with volunteers at a sandbag station in Quincy, Ill., Saturday, June 14, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., right, fills sandbags with Quincy, Ill., Mayor John Spring, left, at a sandbag station in Quincy, Ill., Saturday, June 14, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., right, fills sandbags at a sandbag station in Quincy, Ill., Saturday, June 14, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., right, fills sandbags with Quincy, Ill., Mayor John Spring, center, and Dylan Muldoon 10, from Quincy, with State Sen. John Sullivan far left, at a sandbag station in Quincy, Ill. Saturday, June 14, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., right, fills sandbags with Quincy, Ill., Mayor John Spring, center, and Dylan Muldoon 10, from Quincy, at a sandbag station in Quincy, Ill. Saturday, June 14, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., right, fills sandbags with Quincy, Ill., Mayor John Spring at a sandbag station in Quincy, Ill., Saturday, June 14, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., gets out of the car to board his campaign charter plane in Philadelphia, Pa., Saturday, June 14, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., takes his sunglasses off as he greets supporters before he boards his campaign charter plane in Philadelphia, Pa. Saturday, June 14, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., walks to his campaign charter plane in Philadelphia, Saturday, June 14, 2008.(AP Photo/Alex Brandon)
The congregation at the Apostolic Church of God in Chicago applauds during the service as Democratic presidential candidate Sen. Barack Obama D-Ill., speaks about fatherhood, Sunday, June 15, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., speaks about fatherhood at the Apostolic Church of God in Chicago Sunday, June 15, 2008. (AP Photo/Alex Brandon)
The family of Democratic presidential candidate Sen. Barack Obama D-Ill., daughter Sasha Obama 7, left, daughter Malia Obama 9, and wife Michelle Obama, listen to his speech about fatherhood at the Apostolic Church of God in Chicago, Sunday, June 15, 2008. (AP Photo/Alex Brandon)
The balcony is filled as Democratic presidential candidate Sen. Barack Obama D-Ill., speaks at the Apostolic Church of God service about fatherhood, in Chicago Sunday, June 15, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., right, hugs Elizabeth Norman at the Apostolic Church of God in Chicago, Sunday, June 15, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., walks to the pulpit to speak at the Apostolic Church of God service about fatherhood in Chicago, Sunday, June 15, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., waves as he finishes speaking at the Apostolic Church of God service about fatherhood in Chicago, Sunday, June 15, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., waves a he finishes speaking at the Apostolic Church of God service about fatherhood in Chicago, Sunday, June 15, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., kisses daughter Sasha Obama, 7, as he leaves the Apostolic Church of God service in Chicago, Sunday, June 15, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., shakes hands at the over flow crowd at the Apostolic Church of God service in Chicago, Sunday, June 15, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., shakes hands at the over flow crowd at the Apostolic Church of God service with wife Michelle Obama, right, in Chicago, Sunday, June 15, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., applauds during the service at the Apostolic Church of God in Chicago, Sunday, June 15, 2008.(AP Photo/Alex Brandon)
Michelle Obama, wife of Democratic presidential candidate Sen. Barack Obama D-Ill., listens to his speech at the Apostolic Church of God service about fatherhood in Chicago, Sunday, June 15, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., shakes hands with the choir after speaking at the Apostolic Church of God service about fatherhood in Chicago, Sunday, June 15, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., applauds during the Apostolic Church of God service in Chicago, Sunday, June 15, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., listens during the Apostolic Church of God service in Chicago, Sunday, June 15, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., left, applauds during the Apostolic Church of God service in Chicago, Sunday, June 15, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., right, talks with Pastor Dr. Byron Brazier during the Apostolic Church of God service in Chicago, Sunday, June 15, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., speaks at the Apostolic Church of God service about fatherhood in Chicago, Sunday, June 15, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., points at the Apostolic Church of God service in Chicago Sunday, June 15, 2008.(AP Photo/Alex Brandon)
Wife of Democratic presidential candidate Sen. Barack Obama D-Ill., Michelle Obama right, applauds at the Apostolic Church of God with daughters Sasha Obama 7, left, and Malia Obama 10, in Chicago Sunday, June 15, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., applauds during the Apostolic Church of God service in Chicago Sunday, June 15, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., participates in the service at the Apostolic Church of God in Chicago Sunday, June 15, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., prays at the Apostolic Church of God service in Chicago Sunday, June 15, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., applauds as he enters the Apostolic Church of God service in Chicago Sunday, June 15, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., applauds at the Apostolic Church of God service in Chicago Sunday, June 15, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., center left, with Rep. Joe Baca, D-Calif., right, and other members of the Congressional Hispanic Caucus, speak after a meeting at Democratic National Committee headquarters in Washington, Tuesday, June 17, 2008. (AP Photo/Lawrence Jackson)
Democratic presidential candidate Sen. Barack Obama, D-Ill., center left, with Rep. Joe Baca, D-Calif., right, and other members of the Congressional Hispanic Caucus speak after a meeting at Democratic National Committee headquarters in Washington, Tuesday, June 17, 2008. (AP Photo/Lawrence Jackson)
Democratic presidential candidate Sen. Barack Obama, D-Ill., left, listens as Rep. Joe Baca, D-Calif., chairman of the Congressional Hispanic Caucus, speaks after a meeting at Democratic National Committee headquarters in Washington, Tuesday, June 17, 2008. (AP Photo/Lawrence Jackson)
Democratic presidential candidate Sen. Barack Obama, D-Ill., left, with Rep. Joe Baca, D-Calif., speak after a meeting at Democratic National Committee headquarters in Washington, Tuesday, June 17, 2008. (AP Photo/Lawrence Jackson)
Democratic presidential hopeful Sen. Barack Obama D-Ill. arrives at the Democratic National Committee headquarters in Washington, Tuesday, June 17, 2008. (AP Photo/Lawrence Jackson)
Democratic presidential candidate Sen. Barack Obama, D-Ill., talks to the media during a news conference on his campaign plane en route from Michigan to Washington, DC Tuesday, June 17, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill. steps off the bus to board the campaign plane at Detroit Metropolitan Airport in Romulus, Mich., Tuesday, June 17, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., boards the campaign plane at Detroit Metropolitan Airport in Romulus, Mich., Tuesday, June 17, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill. speaks at Wayne County Community College District Downriver Campus in Taylor, Mich., Tuesday, June 17, 2008. (AP Photo/Paul Sancya)
Democratic presidential candidate Sen. Barack Obama, D-Ill. poses with students at Wayne County Community College District Downriver Campus in Taylor, Mich., Tuesday, June 17, 2008. (AP Photo/Paul Sancya)
Democratic presidential candidate Sen. Barack Obama, D-Ill. receives a toothbrush from dental hygienist students at Wayne County Community College District Downriver Campus in Taylor, Mich., Tuesday, June 17, 2008. (AP Photo/Paul Sancya)
Democratic presidential candidate Sen. Barack Obama, D-Ill. speaks with students at Wayne County Community College District Downriver Campus in Taylor, Mich., Tuesday, June 17, 2008. (AP Photo/Paul Sancya)
Democratic presidential candidate Sen. Barack Obama, D-Ill. listens to a students question at Wayne County Community College District Downriver Campus in Taylor, Mich., Tuesday, June 17, 2008. (AP Photo/Paul Sancya)
Democratic presidential candidate Sen. Barack Obama, D-Ill. laughs with students at Wayne County Community College District Downriver Campus in Taylor, Mich., Tuesday, June 17, 2008. (AP Photo/Paul Sancya)
Democratic presidential candidate Sen. Barack Obama, D-Ill. speaks to students at Wayne County Community College District Downriver Campus in Taylor, Mich., Tuesday, June 17, 2008. (AP Photo/Paul Sancya)
Democratic presidential candidate Sen. Barack Obama, D-Ill., shakes hands with college district dean Marcus McGrew, as they talk with Marilyn Pace, center, from Taylor, Mich. about her financial aid situation at Wayne County Community College in Taylor, Mich. Tuesday, June 17, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., listens as they talk with Marilyn Pace about her financial aid situation at Wayne County Community College in Taylor, Mich. Tuesday, June 17, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill. answers a question about Vice President Al Gore from Scholastic Kids Press Corps reporter Kayla Gough, 10, from Canton, Mich. Tuesday, June 17, 2008, after a town hall meeting with students at Wayne County Community College in Taylor, Mich. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill. speaks during a town hall meeting with students at Wayne County Community College in Taylor, Mich. Tuesday, June 17, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., speaks at Wayne County Community College District Downriver Campus in Taylor, Mich., Tuesday, June 17, 2008. (AP Photo/Paul Sancya)
Democratic presidential candidate Sen. Barack Obama, D-Ill. speaks during a town hall meeting with students at Wayne County Community College in Taylor, Mich. Tuesday, June 17, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., speaks during a town hall meeting with students at Wayne County Community College in Taylor, Mich. Tuesday, June 17, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., has a light moment while speaking with students at Wayne County Community College District Downriver Campus in Taylor, Mich., Tuesday, June 17, 2008. (AP Photo/Paul Sancya)
Democratic presidential candidate Sen. Barack Obama, D-Ill., comforts student Marilyn Pace from Taylor, Mich., while they discuss her financial aid situation at Wayne County Community College in Wayne, Mich. Tuesday, June 17, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., right. speaks as former Vice President Al Gore applauds at the Joe Lewis Arena in Detroit, Monday, June 16, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., shakes hands after speaking at the Joe Lewis Arena in Detroit, Monday, June 16, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., left, waves with former Vice President Al Gore at the Joe Lewis Arena in Detroit, Monday, June 16, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., right, waves with former Vice President Al Gore at the Joe Lewis Arena in Detroit, Monday, June 16, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., center, signs a shirt with the help of staff members Reggie Love, left and Marvin Nicholson after speaking at the Joe Lewis Arena in Detroit, Monday, June 16, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., signs books after speaking at the Joe Lewis Arena in Detroit, Monday, June 16, 2008.(AP Photo/Alex Brandon)
Detroit Pistons' basketball payer Chauncey Billups introduces Democratic presidential candidate Sen. Barack Obama, D-Ill., and former Vice President Al Gore at Joe Louis Arena in Detroit, Monday, June 16, 2008. Gore announced his endorsement of Barack Obama and promised to help the Democrat achieve what eluded him, the presidency. (AP Photo/Paul Sancya)
Democratic presidential candidate Sen. Barack Obama, D-Ill., left, and former Vice President Al Gore wave to the audience at Joe Louis Arena in Detroit, Monday, June 16, 2008. Gore announced his endorsement of Obama. (AP Photo/Paul Sancya)
Democratic presidential candidate Sen. Barack Obama, D-Ill., speaks as former Vice President Al Gore, left, claps at Joe Louis Arena in Detroit, Monday, June 16, 2008. Gore announced his endorsement of Obama. (AP Photo/Paul Sancya)
Michigan Gov. Jennifer Granholm holds up her shoe while introducing Democratic presidential candidate Sen. Barack Obama, D-Ill., and former Vice President Al Gore at Joe Louis Arena in Detroit, Monday, June 16, 2008. Gore announced his endorsement of Obama. (AP Photo/Paul Sancya)
Democratic presidential candidate Sen. Barack Obama, D-Ill., right, speaks as former Vice President Al Gore claps at Joe Louis Arena in Detroit, Monday, June 16, 2008. Gore announced his endorsement of Obama. (AP Photo/Paul Sancya)
Democratic presidential candidate Sen. Barack Obama, D-Ill., right, speaks as former Vice President Al Gore listens at Joe Louis Arena in Detroit, Monday, June 16, 2008. Gore announced his endorsement of Obama. (AP Photo/Paul Sancya)
Democratic presidential candidate Sen. Barack Obama, D-Ill., left, listens to the endorsement of former Vice President Al Gore at the Joe Lewis Arena in Detroit, Monday, June 16, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., shakes hands with former Vice President Al Gore at the Joe Lewis Arena in Detroit, Monday, June 16, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., right, raises his hands with former Vice President Al Gore at the Joe Lewis Arena in Detroit, Monday, June 16, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., right, listens to the endorsement of former Vice President Al Gore at the Joe Lewis Arena in Detroit, Monday, June 16, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., applauds as former Vice President Al Gore endorses him at the Joe Lewis Arena in Detroit, Monday, June 16, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., left, and former Vice President Al Gore shake hands at Joe Louis Arena in Detroit, Monday, June 16, 2008. Gore announced his endorsement of Obama. (AP Photo/Paul Sancya)
Democratic presidential candidate Sen. Barack Obama, D-Ill., embraces former Vice President Al Gore after being endorsed by Gore at the Joe Lewis Arena in Detroit, Monday, June 16, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., points to former Vice President Al Gore as he speaks at the Joe Lewis Arena in Detroit, Monday, June 16, 2008. Gore announced his endorsement of Obama. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., left, smiles as former Vice President Al Gore claps at Joe Louis Arena in Detroit, Monday, June 16, 2008. Gore announced his endorsement of Obama. (AP Photo/Paul Sancya)
Democratic presidential candidate Sen. Barack Obama, D-Ill., right, waves to the crowd with former Vice President Al Gore at the Joe Lewis Arena in Detroit, Monday, June 16, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., speaks at the Joe Lewis Arena in Detroit, Monday, June 16, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., left, listens as former Vice President Al Gore speaks at Joe Louis Arena in Detroit, Monday, June 16, 2008. Gore announced his endorsement of Obama. (AP Photo/Paul Sancya)
Democratic presidential candidate Sen. Barack Obama, D-Ill., center, raises his hands with former Vice President Al Gore, left, and Michigan Gov. Jennifer Granholm at the Joe Lewis Arena in Detroit, Monday, June 16, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., left, waves as former Vice President Al Gore speaks at Joe Louis Arena in Detroit, Monday, June 16, 2008. Gore announced his endorsement of Obama. (AP Photo/Paul Sancya)
Democratic presidential candidate Sen. Barack Obama, D-Ill., right, and former Vice President Al Gore appear at Joe Louis Arena in Detroit, Monday, June 16, 2008. Gore announced his endorsement of Obama. (AP Photo/Paul Sancya)
Democratic presidential candidate Sen. Barack Obama, D-Ill., right, and former Vice President Al Gore wave to the audience at Joe Louis Arena in Detroit, Monday, June 16, 2008. Gore announced his endorsement of Obama. (AP Photo/Paul Sancya)
Democratic presidential candidate Sen. Barack Obama, D-Ill., right, and former Vice President Al Gore enter Joe Louis Arena in Detroit, Monday, June 16, 2008. Gore announced his endorsement of Obama and promised to help the Democrat achieve what eluded him, the presidency.(AP Photo/Paul Sancya)
Democratic presidential candidate Sen. Barack Obama, D-Ill., right, and former Vice President Al Gore enter Joe Louis Arena in Detroit, Monday, June 16, 2008. Gore announced his endorsement of Obama and promised to help the Democrat achieve what eluded him, the presidency. (AP Photo/Paul Sancya)
Thousands stand in line to hear Democratic presidential candidate Sen. Barack Obama, D-Ill., and former Vice President Al Gore appear at Joe Louis Arena in Detroit, Monday, June 16, 2008. (AP Photo/Paul Sancya)
Thousands wait in line to hear Democratic presidential candidate Sen. Barack Obama, D-Ill., and former Vice President Al Gore appear at Joe Louis Arena in Monday, June 16, 2008, in Detroit. (AP Photo/Paul Sancya)
Democratic presidential candidate Sen. Barack Obama, D-Ill., talks with the media between handshakes with workers at the GM Flint Engine South plant in Flint, Mich., Monday, June 16, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., laughs as he shakes hands with workers at the GM Flint Engine South plant in Flint, Mich., Monday, June 16, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., shakes hands with workers at the GM Flint Engine South plant in Flint, Mich., Monday, June 16, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., sings autograph as he shakes hands with workers at the GM Flint Engine South plant in Flint, Mich., Monday, June 16, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., walks back to the bus in the rain after shaking hands with workers at the GM Flint Engine South plant in Flint, Mich., Monday, June 16, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., talks with Nick Letterman, from Flint, back stage before his speech at Kettering University in Flint, Mich. Monday, June 16, 2008. (AP Photo/Alex Brandon)
A woman wipes a tear after Democratic presidential candidate Sen. Barack Obama, D-Ill., spoke at Kettering University in Flint, Mich., Monday, June 16, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., speaks about his economic plan at Kettering University in Flint, Mich., Monday, June 16, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., speaks about his economic plan at Kettering University in Flint, Mich., Monday, June 16, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., talks with Nick Letterman backstage before his speech at Kettering University in Flint, Mich., Monday, June 16, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., speaks about his economic plan at Kettering University in Flint, Mich., Monday, June 16, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., arrives to speak about his economic plan at Kettering University in Flint, Mich., Monday, June 16, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., shakes hands before his speech at Kettering University in Flint, Mich., Monday, June 16, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., shakes hands before his speech at Kettering University in Flint, Mich., Monday, June 16, 2008. (AP Photo/Alex Brandon)
Supporters join hands as they cheer Democratic presidential candidate Sen. Barack Obama D-Ill., after his speech at Kettering University in Flint, Mich., Monday, June 16, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., speaks about his economic plan at Kettering University in Flint, Mich., Monday, June 16, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., speaks about his economic plan at Kettering University in Flint, Mich. Monday, June 16, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., shakes hands after his speech at Kettering University in Flint, Mich., Monday, June 16, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., waves to the crowd before he speaks about his economic plan at Kettering University in Flint, Mich., Monday, June 16, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., center, greets the crowd as he is joined by Democratic National Committeewoman Debbie Dingell, left, and Sen. Carl Levin D-Mich. right, at Kettering University in Flint, Mich., Monday, June 16, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., greets supporters after addressing a rally at Kettering University in Flint, Mich., Monday, June 16, 2008. (AP Photo/Carlos Osorio)
Democratic presidential candidate Sen. Barack Obama, D-Ill., left, fist bumps a supporter before speaking at Kettering University in Flint, Mich., Monday, June 16, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., addresses a rally at Kettering University in Flint, Mich., Monday, June 16, 2008. (AP Photo/Carlos Osorio)
Democratic presidential candidate Sen. Barack Obama, D-Ill., acknowledges the crowd during his introduction at a rally at Kettering University in Flint, Mich., Monday, June 16, 2008. (AP Photo/Carlos Osorio)
Democratic presidential candidate Sen. Barack Obama, D-Ill., acknowledges the crowd with Sen. Carl Levin, D-Mich., during a rally at Kettering University in Flint, Mich., Monday, June 16, 2008. (AP Photo/Carlos Osorio)
Democratic presidential candidate Sen. Barack Obama D-Ill., speaks to the media about his phone call with the Iraqi foreign minister, at the airport in Flint, Mich., Monday, June 16, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama D-Ill., speaks to reporters about his phone call with the Iraqi foreign minister, at the airport in Flint, Mich., Monday, June 16, 2008. (AP Photo/Alex Brandon)
** FILE ** This file photo provided by The Oahuan, the yearbook of Punahou School, shows Barack Obama posing with his 1979 state basketball championship team for Punahou School. Identified as Barry Obama, he is in the back row, last player on the right. Others identified in the yearbook are: front row: Greg Ramos, manager; Chris McLachlin, head coach; Dan Moore, manager. Second row: Matt Hiu, Alan Lum, Tom Topolinski, Darin Mauerer, Dan Hale, John Kamana. Third row: Darryl Gabriel, Boy Eldredge, Greg Orme, Larry Tavares, Jason Oshima. On the sprawling campus of the prestigious Punahou School, Obama could often be seen carrying books in one hand and dribbling a basketball in the other. He eventually earned a spot on the heralded varsity team. "He'd be the first one to practice, and after practice, he'd go to the park and play more," said McLachlin, who is the father of PGA Tour golfer Parker McLachlin. "So his passion for the game is unmatched by most of the players I've ever had."(AP
Democratic presidential candidate Sen. Barack Obama, D-Ill., steps out of his Secret Service vehicle as he arrives at Holy Trinity Church in the Georgetown neighborhood of Washington. Wednesday, June 18, 2008, for the funeral mass of NBC's Tim Russert. (AP Photo/J. Scott Applewhite)
Democratic presidential candidate Sen. Barack Obama, D-Ill. arrives at the funeral for NBC's Tim Russert, Wednesday, June 18, 2008, in Washington. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill. greets people as he arrives at the funeral for NBC's Tim Russert, Wednesday, June 18, 2008, in Washington. (AP Photo/Alex Brandon)
Arriving for the funeral of NBC's Tim Russert, Democratic presidential candidate Sen. Barack Obama, D-Ill., looks out the window of his Secret Service vehicle as it pulls up to the Holy Trinity Church in the Georgetown neighborhood of Washington, Wednesday, June 18, 2008. (AP Photo/J. Scott Applewhite)
Democratic presidential candidate Sen. Barack Obama, D-Ill., left, talks with former Gen. Wesley Clark, and other generals and flag officers during a military and foreign affairs round table discussion in Washington Wednesday, June 18, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., center, Ret. Gen. Merrill "Tony" McPeak, and Ret. Gen. Wesley Clark, talk with generals and other flag officers during a military and foreign affairs round table discussion in Washington Wednesday, June 18, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., center, former Sec. of the Navy Richard Danzig, left, and Ret. Gen. Wesley Clark, talk with generals and other flag officers during a military and foreign affairs round table discussion in Washington Wednesday, June 18, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., right, with former Rep. Tim Roemer D-Ind., left, and former Sec. of Defense William Perry, points to a question from the media after a foreign affairs round table in Washington, DC Wednesday, June 18, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., points to take a question from the media after a foreign affairs round table discussion in Washington, Wednesday, June 18, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., talks with former Secretary of State Madeleine Albright after a foreign affairs round table discussion in Washington Wednesday, June 18, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., talks with former Secretary of State Madeleine Albright after a foreign affairs round table discussion in Washington, Wednesday, June 18, 2008. (AP Photo/Alex Brandon)
Democratic presidential hopeful Sen. Barack Obama, D-Ill. arrives at Holy Trinity Church in the Georgetown neighborhood of Washington, Wednesday, June 18, 2008, for the funeral mass of NBC's Tim Russert. (AP Photo/J. Scott Applewhite)
Democratic presidential candidate Sen. Barack Obama, D-Ill., talks with former Secretary of State Madeleine Albright during a foreign affairs round table discussion in Washington Wednesday, June 18, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., center, participates in a foreign affairs round table discussion with, from left, Greg Craig, Jim Steinberg, former Sen. David Boren, D-Okla., Tony Lake, former Rep. Lee Hamilton, D-Ind., Obama, former Secretary of State Madeleine Albright, former Secretary of Defense William Perry, Susan Rice, former Rep. Tim Roemer D-Ind., and former Secretary of Navy Richard Danzig in Washington Wednesday, June 18, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., talks with former Rep. Lee Hamilton, D-Ind., left, and former Secretary of State Madeleine Albright, right, at the start of a foreign affairs round table discussion in Washington Wednesday, June 18, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., participates in a foreign affairs round table discussion with, from right, Susan Rice, former Sec. of Defense William Perry, former Sec. of State Madeleine Albright, Obama, and former Rep. Lee Hamilton D-Ind., in Washington Wednesday, June 18, 2008. (AP Photo/Alex Brandon)
This handout photo provided by ABC shows Michelle Obama, wife Democratic presidential candidate Sen. Barack Obama, D-Ill., third from left, on the set of "The View," Wednesday, June 18, 2008 in New York. From left are, Whoopi Goldberg, Joy Behar, Mrs. Obama, Sherri Shepard, Barbara Walters and Elisabeth Hasselbeck. (AP Photo/ABC, Steve Fenn)
Democratic presidential candidate Sen. Barack Obama, D-Ill., talks with former Indiana Rep. Lee Hamilton, left, and former Secretary of state Madeleine Albright at the start of a foreign affairs round table, Wednesday, June 18, 2008, in Washington.(AP Photo/Alex Brandon)
This handout photo provided by ABC shows Michelle Obama, wife Democratic presidential candidate Sen. Barack Obama, D-Ill., third from right, and Matthew Broderick, on the set of "The View," Wednesday, June 18, 2008 in New York. From left are, Whoopi Goldberg, Barbara Walters, Joy Behar, Broderick, Mrs. Obama, Sherri Shepard and Elisabeth Hasselbeck. (AP Photo/ABC, Steve Fenn)
This handout photo provided by ABC shows Michelle Obama, wife Democratic presidential candidate Sen. Barack Obama, D-Ill., third from left, on the set of "The View," Wednesday, June 18, 2008 in New York. From left are, Whoopi Goldberg, Joy Behar, Mrs. Obama, Sherri Shepard, Elisabeth Hasselbeck, and Barbara Walters. (AP Photo/ABC, Steve Fenn)
This handout photo provided by ABC shows Michelle Obama, wife Democratic presidential candidate Sen. Barack Obama, D-Ill., third from right, posing with co-hosts "The View," Wednesday, June 18, 2008 in New York. From left are, Whoopi Goldberg, Sherri Shepard, Joy Behar, Mrs. Obama, Barbara Walters and Elisabeth Hasselbeck. (AP Photo/ABC, Steve Fenn)
** FILE ** In this Tuesday, June 17, 2008 file photo, Democratic presidential candidate Sen. Barack Obama, D-Ill., talks to the media during a news conference on his campaign plane. Obama reversed course to become the first candidate to reject $85 million in public money for the general election, a decision that will allow the record-shattering fundraiser to raise and spend as much as he wants _ and, thus, implement his strategy to expand the Electoral College playing field. (AP Photo/Alex Brandon)
Democratic presidential candidate, Sen. Barack Obama, D-Ill., center, greets people on his doorstep as he move around his home in Chicago, Ill.,Thursday, June 19, 2008, during photo sessions with photographers. (AP Photo/Russel A. Daniels)
Democratic presidential candidate, Sen. Barack Obama, D-Ill., and his family, from left, daughter Sasha, wife Michelle, and daughter Malia, prepare for a family portrait by photographer Martin Schoeller (not shown) and his assistants, right, at the Obama family's home in Chicago, Ill., Thursday, June 19, 2008. (AP Photo/Russel A. Daniels)
Democratic presidential candidate, Sen. Barack Obama, D-Ill., and his family, wife Michelle and daughter Malia, partially visible at left, are prepared for a family portrait by photographer Kwaku Alston, second from right, and his assistants, at Obama's home in Chicago, Thursday, June 19, 2008. (AP Photo/Russel A. Daniels)
Democratic presidential candidate, Sen. Barack Obama, D-Ill., removes his tie after a photo session with photographer Kwaku Alston, left, at Obama's home in Chicago, Thursday, June 19, 2008. (AP Photo/Russel A. Daniels)
Democratic presidential candidate, Sen. Barack Obama, D-Ill., removes his tie after a photo session with photographer Kwaku Alston, left, at his home in Chicago, Thursday, June 19, 2008. (AP Photo/Russel A. Daniels)
Democratic presidential candidate Sen. Barack Obama, D-Ill., left, talks with Howard Dean, right, head of the Democratic National Committee, while in flight from Washington to Chicago Thursday, June 19, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., left, talks with Howard Dean, right, the head of the Democratic National Committee, while in flight from Washington to Chicago Thursday, June 19, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., right, talks with Reggie Love, on his campaign charter plane before takeoff in Washington Thursday, June 19, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill. greets labor leaders prior to the start of an economic round table discussion, Thursday, June 19, 2008, in Washington. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., talks with labor leaders during an economic round table discussion, Thursday, June 19, 2008, in Washington. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., flanked by Service Employees International Union (SEIU) International Secretary Treasurer with Anna Burger, left, and AFL-CIO President John Sweeney, takes part in an economic round table discussion, Thursday, June 19, 2008, in Washington. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., flanked by Service Employees International Union (SEIU) International Secretary Treasurer with Anna Burger, left, and AFL-CIO President John Sweeney, smiles while taking part in an economic round table discussion, Thursday, June 19, 2008, in Washington. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., speaks during a meeting of Democratic Governors at the Chicago History Museum in Chicago Friday, June 20, 2008. A new seal debuted on Obama's podium Friday, sporting iconography used in the U.S. presidential seal, the blue background, the eagle clutching arrows on left and olive branch on right, but with symbolic differences. Instead of the Latin "E pluribus unum" (Out of many, one), Obama's says "Vero possumus", rough Latin for "Yes, we can." Instead of "Seal of the President of the United States", Obama's Web site address is listed. And instead of a shield, Obama's eagle wears his "O" campaign logo with a rising sun representing hope ahead. (AP Photo/Alex Brandon)
The image of Michelle Obama, wife of Democratic presidential candidate Sen. Barack Obama, D-Ill., is projected onto an overhead screen as she speaks at the National Partnership for Women and Families, Friday, June 20, 2008, in Washington. (AP Photo/Pablo Martinez Monsivais)
Michelle Obama, wife of Democratic presidential candidate Sen. Barack Obama, D-Ill., smiles as she takes her seat after speaking at the National Partnership for Women and Families, Friday, June 20, 2008, in Washington. (AP Photo/Pablo Martinez Monsivais)
Michelle Obama, wife of Democratic presidential candidate Sen. Barack Obama, D-Ill., walks up to the podium to speak at the National Partnership for Women and Families, Friday, June 20, 2008, in Washington. (AP Photo/Pablo Martinez Monsivais)
An unidentified member of the Secret Service is silhouetted at right, as Michelle Obama, wife of Democratic presidential candidate Sen. Barack Obama, D-Ill., speaks at the National Partnership for Women and Families, Friday, June 20, 2008, in Washington. (AP Photo/Pablo Martinez Monsivais)
Michelle Obama, wife of Democratic presidential candidate Sen. Barack Obama, D-Ill., speaks at the National Partnership for Women and Families, Friday, June 20, 2008, in Washington. (AP Photo/Pablo Martinez Monsivais)
Michelle Obama, wife of Democratic presidential candidate Sen. Barack Obama, D-Ill., hugs EMILY'S List President Ellen Malcolm, left, after speaking at the National Partnership for Women and Families, Friday, June 20, 2008, in Washington. (AP Photo/Pablo Martinez Monsivais)
Democratic presidential candidate Sen. Barack Obama, D-Ill. leaves after a meeting of Democratic Governors, Friday, June 20, 2008, at the Chicago History Museum in Chicago. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., center, listens during a meeting of Democratic Governors, Friday, June 20, 2008, at the Chicago History Museum in Chicago. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., right, listens to Arizona Gov. Janet Napolitano, during a meeting of Democratic Governors, Friday. June 20, 2008, at the Chicago History Museum in Chicago. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill. listens during a meeting of Democratic Governors, Friday, June 20, 2008, at the Chicago History Museum in Chicago. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill. listens during a meeting of Democratic Governors, Friday, June 20,2008, at the Chicago History Museum in Chicago.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., listens during a meeting of Democratic Governors, Friday, June 20, 2008, at the Chicago History Museum in Chicago. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill. takes notes during a meeting of Democratic Governors, Friday, June 20, 2008, at the Chicago History Museum in Chicago. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., right, points during a meeting of Democratic Governors, Friday, June 20,2008, at the Chicago History Museum in Chicago. Rear table, from left are, Pennsylvania Gov. Ed Rendell, Arizona Gov. Janet Napolitano and Obama. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., right, listens to Pennsylvania Gov. Ed Rendell, left, during a meeting of Democratic Governors, Friday, June 20,2008, at the Chicago History Museum in Chicago. Arizona Gov. Janet Napolitano is at center. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., center, listens during a meeting of Democratic Governors, Friday, June 20,2008, at the Chicago History Museum in Chicago. From left are, Pennsylvania Gov. Ed Rendell, Arizona Gov. Janet Napolitano., Obama, Wisconsin Gov. Jim Doyle, and Michigan Gov. Jennifer Granholm. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill. gestures while speaking during a meeting of Democratic Governors, Friday, June 20,2008, at the Chicago History Museum in Chicago. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., left, helps New York Gov. David Paterson to his seat before a meeting of Democratic Governors, Friday, June 20, 2008, at the Chicago History Museum in Chicago. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill. speaks during a meeting of Democratic governors, Friday, June 20, 2008, at the Chicago History Museum in Chicago Friday. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., center, speaks during a meeting of Democratic Governors, Friday, June 20, 2008, at the Chicago History Museum in Chicago. (AP Photo/Alex Brandon)
** FILE ** In this March 27, 2008 file photo, New York Mayor Michael Bloomberg, left, shakes hands with Democratic presidential candidate Sen. Barack Obama, D-Ill., after he introduced him in the Great Hall of New York's Cooper Union. Bloomberg urged Jewish voters to denounce the whisper campaign that for months has pushed the false rumor that Democratic presidential candidate Barack Obama is secretly a Muslim. (AP Photo/Richard Drew, File)
** FILE ** In this April 13, 2008 file photo, then-Democratic presidential hopefuls, Sen. Barack Obama, D-Ill., right, and Sen. Hillary Rodham Clinton, D-N.Y., share the stage at the Compassion Forum held at Messiah College in Grantham, Pa. Obama's campaign announced Friday, June 20, 2008, that he will campaign with his former rival next week, a step toward unifying a fractured Democratic Party after a bruising primary fight. (AP Photo/Jae C. Hong, File)
Democratic presidential candidate Sen. Barack Obama, D-Ill., right, talks with Sen. Bill Nelson, D-Fla., in flight from Jacksonville, Fla., to Miami Friday, June 20, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., boards his campaign plane in Jacksonville, Fla., Friday, June 20, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., right, talks with Sen. Bill Nelson, D-Fla., while in flight from Jacksonville to Miami,Fla., Friday, June 20, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., talks with the media in front of the St. Johns River in Jacksonville, Fla., Friday, June 20, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., waves as he walks away after talking with the media in front of the St. Johns River in Jacksonville, Fla., Friday, June 20, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., talks with the media in front of the St. Johns River in Jacksonville, Fla., Friday, June 20, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., walks to the podium to talk with the media in front of the St. Johns River in Jacksonville, Fla., Friday, June 20, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., waves after talking with the media in front of the St. Johns River in Jacksonville, Fla., Friday, June 20, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., gestures after talking with the media in front of the St. Johns River in Jacksonville, Fla., Friday, June 20, 2008. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., smiles after talking with the media in front of the St. Johns River in Jacksonville, Fla., Friday, June 20, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., shakes hands with people after talking with the media in front of the St. Johns River in Jacksonville, Fla., Friday, June 20, 2008. (AP Photo/Alex Brandon)
**FILE** Sen. Chuck Hagel, R-Neb, speaks during a town hall meeting in this 2007 file photo in Lincoln, Neb. Hagel said Friday he would consider serving as Democratic presidential candidate Barack Obama's running mate if asked, but he doesn't expect to be on any ticket. (AP Photo/Nati Harnik, FILE)
Democratic presidential candidate, Sen. Barack Obama, D-Ill., puts on a Miami Beach hat before he boards his campaign charter plane at the airport in Miami Saturday, June 21, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate, Sen. Barack Obama, D-Ill., speaks at the United States Conference of Mayors in Miami Saturday, June 21, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate, Sen. Barack Obama, D-Ill., speaks during a luncheon at The Unites States Conference of Mayors 76th Annual Meeting in Miami Saturday, June 21, 2008. (AP Photo/Hans Deryk)
Democratic presidential candidate, Sen. Barack Obama, D-Ill., prepares to address a luncheon at The Unites States Conference of Mayors 76th Annual Meeting in Miami, Florida Saturday, June 21, 2008. (AP Photo/Hans Deryk)
Democratic presidential candidate, Sen. Barack Obama, D-Ill., is greeted by mayors standing at front row tables during a luncheon at The Unites States Conference of Mayors 76th Annual Meeting in Miami Saturday, June 21, 2008. (AP Photo/Hans Deryk)
Democratic presidential candidate, Sen. Barack Obama, D-Ill., speaks during A luncheon at The Unites States Conference of Mayors 76th Annual Meeting in Miami Saturday, June 21, 2008. (AP Photo/Hans Deryk)
Democratic presidential candidate Sen. Barack Obama, D-Ill., gets out of the car as he boards the campaign charter plane in Albuquerque, N.M., Monday, June 23, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., shakes hands as he boards the campaign charter plane in Albuquerque, N.M., Monday, June 23, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., talks with women during a round table discussion at the Flying Star Cafe facility in Albuquerque, N.M., Monday, June 23, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., looks at something that he is being asked to sign after a round table discussion with women at the Flying Star Cafe facility in Albuquerque, N.M., Monday, June 23, 2008.(AP Photo/Alex Brandon)
Women listen to Democratic presidential candidate Sen. Barack Obama, D-Ill., during a round table discussion at the Flying Star Cafe in Albuquerque, N.M., Monday, June 23, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., shows good luck charms that he carries in his pocket during his talk with women during a round table discussion at the Flying Star Cafe facility in Albuquerque, N.M., Monday, June 23, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., talks with employees as he tours the Flying Star Cafe bakery area in Albuquerque, N.M. Monday, June 23, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., laughs while talking with employees as he tours the Flying Star Cafe bakery facility in Albuquerque, N.M. Monday, June 23, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., talks with Harold Nunn, right, his wife Christina Nunn, center, and daughter Desere Nunn, 12, from Albuquerque, before an event at the Flying Star Cafe in Albuquerque, N.M. Monday, June 23, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., looks at trays of sweets as he tours the Flying Star Cafe baking facility in Albuquerque, N.M. Monday, June 23, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., right, looks under a pie tin with owner Jean Bernstein as he tours the Flying Star Cafe baking facility in Albuquerque, N.M. Monday, June 23, 2008.(AP Photo/Alex Brandon)
** FILE ** In this Feb. 24, 2008 file photo, actor Samuel L. Jackson speaks on behalf of Democratic Presidential hopeful Sen. Barack Obama, D-Ill at a rally in Tyler, Texas. Obama's gala fundraiser this week will attract the mandatory lineup of big-screen talent and boldface names and confirm again that the entertainment industry remains one of the most reliable and abundant sources of Democratic campaign cash. (AP Photo/Dr. Scott M. Lieberman, File)
** FILE ** In this Dec. 9, 2007 file photo, Democratic presidential candidate Sen. Barack Obama, D-Ill., reacts as Oprah Winfrey introduces him to the crowd at a rally in Manchester, N.H. For Hollywood, there's only one star left in this campaign. Obama's gala fundraiser this week will attract the mandatory lineup of big-screen talent and boldface names and confirm again that the entertainment industry remains one of the most reliable and abundant sources of Democratic campaign cash. (AP Photo/Elise Amendola, File)
Democratic presidential candidate Sen. Barack Obama, D-Ill. gets off the campaign charter plane at the airport in Albuquerque, N.M., Monday, June 23, 2008. (AP Photo/Alex Brandon)
An idol of Hindu God Hanuman, which will be sent to Barack Obama, is seen during a prayer ceremony in New Delhi, Tuesday, June 24, 2008. A dozen priests chanted around a sacred fire on Tuesday as a group of Indians offered prayers to Hanuman to grant victory to U.S. Democratic presidential candidate Barack Obama. (AP Photo/Gurinder Osan)
Members of the public look at a larger than life idol of Hindu God Hanuman from a street during a special prayer ceremonyin New Delhi, Tuesday, June 24, 2008. A dozen priests chanted around a sacred fire on Tuesday as a group of Indians offered prayers to Hanuman to grant victory to U.S. Democratic presidential candidate Barack Obama. (AP Photo/Gurinder Osan)
Democrats Abroad India Chairperson Carolyn Sauvage - Mar, center, wearing traditional Indian turban, shows the victory sign as she is surrounded by devotees of Hindu God Hanuman in New Delhi, India, Tuesday, June 24, 2008. A dozen priests chanted around a sacred fire on Tuesday as a group of Indians offered prayers to Hanuman to grant victory to Democratic U.S. presidential candidate Barack Obama. (AP Photo/Gurinder Osan)
Devotees of Hindu God Hanuman place a U.S. flag near his idol at a prayer in New Delhi, India, Tuesday, June 24, 2008. A dozen priests chanted around a sacred fire on Tuesday as a group of Indians offered prayers to Hanuman to grant victory to Democratic U.S. presidential candidate Barack Obama. (AP Photo/Gurinder Osan)
Democrats Abroad India Chairperson Carolyn Sauvage - Mar, third left in bottom row, wearing traditional Indian turban, smiles as devotees of Hindu God Hanuman raise slogans in favor of U.S. Democratic presidential candidate Barack Obama at an event in New Delhi, India, Tuesday, June 24, 2008. A dozen priests chanted around a sacred fire on Tuesday as a group of Indians offered prayers to Hanuman to grant victory to Obama. (AP Photo/Gurinder Osan)
Democrats Abroad India Chairperson Carolyn Sauvage-Mar, center, gestures, as devotees of Hindu God Hanuman place a traditional turban on her head in New Delhi, India, Tuesday, June 24, 2008. A dozen priests chanted around a sacred fire on Tuesday as a group of Indians offered prayers to Hanuman to grant victory to Democratic U.S. presidential candidate Barack Obama. Sauvage-Mar is one of 22 delegates who will represent overseas Americans at the Democratic National Convention in Denver, Colorado and is pledged to vote for Obama. (AP Photo/Gurinder Osan)
Democratic presidential candidate Sen. Barack Obama, D-Ill., gets off the campaign charter plane in Las Vegas, Monday, June 23, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., second from left, looks at solar panels during a tour of the Springs Preserve, a cultural and historic attraction, in Las Vegas, Tuesday, June 24, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., left, talks with Ash Helton, 6, his father Andrew Helton, right, and, from center, left to right, Alyssa Bennett 17, Hilary Helton, and Austin Bennett 15, Tuesday, June 24,2008, at the Springs Preserve, a cultural and historic attraction in Las Vegas. The family would see benefits from his tax proposals. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., right, looks at solar panels overhead with Robert Balzar, left, and Michael Andrieu, Tuesday, June 24,2008, during a tour of the Springs Preserve, a cultural and historic attraction in Las Vegas. (AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., poses for a picture with members of the California Highway Patrol on the tarmac at the airport in Los Angeles, Tuesday, June 24, 2008.(AP Photo/Alex Brandon)
An unidentified woman takes a picture of the shoes of musician Will.I.Am, standing, with the slogan "Yes We Can" at a fundraiser for Democratic presidential candidate Sen. Barack Obama, D-Ill., in Los Angeles Tuesday, June 24, 2008. (AP Photo/Stefano Paltera)
Musician Will.I.Am, center, arrives at a fundraiser for Democratic presidential candidate Sen. Barack Obama, D-Ill., in Los Angeles Tuesday, June 24, 2008. (AP Photo/Stefano Paltera)
Actor Don Cheadle, right, arrives with a guest at a fundraiser for Democratic presidential candidate Sen. Barack Obama, D-Ill., in Los Angeles Tuesday, June 24, 2008. (AP Photo/Stefano Paltera)
Musician Will.I.Am arrives at a fundraiser for Democratic presidential candidate Sen. Barack Obama, D-Ill., in Los Angeles Tuesday, June 24, 2008. (AP Photo/Stefano Paltera)
Actor Dennis Quaid arrives with his wife Kimberly Buffington, at a fundraiser for Democratic presidential candidate Sen. Barack Obama, D-Ill., in Los Angeles Tuesday, June 24, 2008 (AP Photo/Stefano Paltera)
Actor Dennis Quaid, center, arrives with his son Jack Henry Quaid, right, and his wife Kimberly Buffington, at a fundraiser for Democratic presidential candidate Sen. Barack Obama, D-Ill., in Los Angeles Tuesday, June 24, 2008 (AP Photo/Stefano Paltera)
Actor Samuel L. Jackson arrives at a fundraiser for Democratic presidential candidate Sen. Barack Obama, D-Ill., in Los Angeles Tuesday, June 24, 2008. (AP Photo/Stefano Paltera)
**CORRECTS TO BEALS NOT BEALES**Actress Jennifer Beals arrives at a fundraising event for Democratic presidential candidate Sen. Barack Obama, D-Ill., in Los Angeles Tuesday, June 24, 2008. (AP Photo/Alex Brandon)
Actor Dennis Quaid and his wife Kimberly arrives at a fundraising event for Democratic presidential candidate Sen. Barack Obama D-Ill., in Los Angeles Tuesday, June 24, 2008.(AP Photo/Alex Brandon)
Actress Jennifer Beales arrives at a fundraising event for Democratic presidential candidate Sen. Barack Obama, D-Ill., in Los Angeles Tuesday, June 24, 2008. (AP Photo/Alex Brandon)
Supporters arrive at a fundraising event for Democratic presidential candidate Sen. Barack Obama D-Ill., in Los Angeles Tuesday, June 24, 2008.(AP Photo/Alex Brandon)
Supporter Heather Thomas shows an Obama temporary tattoo as she arrives at a fundraising event for Democratic presidential candidate Sen. Barack Obama D-Ill., in Los Angeles, Tuesday, June 24, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., talks during a campaign event at the Springs Preserve, a cultural and historic attraction, in Las Vegas, Nevada Tuesday, June 24, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., shows some of the good luck charms that he carries in his pocket while he talks with the media aboard his campaign charter in flight from Las Vegas to Los Angeles Tuesday, June 24, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., shows some of the good luck charms that he carries in his pocket while he talks with the media aboard his campaign charter in flight from Las Vegas to Los Angeles, Tuesday, June 24, 2008.(AP Photo/Alex Brandon)
