Democratic presidential hopeful Sen. Barack Obama D-Ill., speaks about race during an address in Philadelphia, Tuesday, March 18, 2008. (AP Photo/Alex Brandon)
Accompanied by two of his top supporters in the race for president, U.S. Sen. Joe Lieberman, left, and U.S. Sen. Lindsey Graham, right, U.S. Sen. John McCain, center, talks to reporters during his visit to Amman, Jordan, Tuesday, March 18, 2008. McCain, the likely Republican nominee for the U.S. presidential elections this year, said Tuesday that any hasty pullout from Iraq would be a mistake that would favor Iran and al-Qaida. (AP Photo/Nasser Nasser)
Democratic presidential hopeful Sen. Barack Obama D-Ill., heads to the podium to speak about Iraq and national security, Wednesday, March 19, 2008, at Fayetteville Technical Community College in Fayetteville, N.C.. (AP Photo/Alex Brandon)
Democratic presidential hopeful, Sen. Hillary Rodham Clinton, D-N.Y., campaigns at Montgomery Community College in Blue Bell, Pa., Monday, March 24, 2008. (AP Photo/Charles Dharapak)
Republican presidential candidate, Sen. John McCain, R-Ariz., speaks during a campaign stop in Chula Vista, Calif. Monday, March 24, 2008. (AP Photo/Denis Poroy)
Democratic presidential hopeful, Sen. Hillary Rodham Clinton, D-N.Y., makes remarks at the University of Pennsylvania in Philadelphia, Monday, March 24, 2008. (AP Photo/Matt Rourke)
A Secret Service agent stands guard outside a barbershop in Chicago, Thursday, July 17, 2008, as Democratic presidential candidate Sen. Barack Obama, D-Ill., not shown, gets his haircut. (AP Photo/Jae C. Hong)
Republican presidential candidate Sen. John McCain, R-Ariz., talks with media during a campaign stop at Buxton Oil Inc. in Epping, N.H., Tuesday, July 22, 2008. (AP Photo/Carolyn Kaster)
Republican presidential candidate Sen. John McCain, R-Ariz., holds a news conference at the Bayloff Stamped Products facility in Belleville, Mich., Thursday, July 10, 2008. (AP Photo/Carolyn Kaster)
In this image taken from video and released by ABC News, Bob Woodruff interviews John Edwards Friday, Aug. 8, 2008 in Chapel Hill, N.C. The former North Carolina senator, who was the Democratic vice presidential nominee in 2004, confessed to ABC News that he had lied repeatedly about the affair with 42-year-old Rielle Hunter. (AP Photo/ABC News) ** NO SALES **
Paris Hilton arrives at a hotel in Copenhagen, Denmark, Monday, Aug. 4, 2008. (AP Photo/Polfoto, Tariq Mikkel Khan) ** DENMARK OUT **
A heckler on the press riser puts his hand over his heart as he loudly says the Pledge of Allegiance, interrupting Democratic presidential candidate Sen. Barack Obama, D-Ill., during his speech at a town hall-style meeting at Baldwin-Wallace College in Berea, Ohio, Tuesday, Aug. 5, 2008.(AP Photo/Alex Brandon)
Democratic presidential candidate Sen. Barack Obama, D-Ill., invites a man who interrupted his speech by shouting out the Pledge of Allegiance, to say it with him, puts his hand over his heart, and says the Pledge of Allegiance during a town hall-style meeting at Baldwin Wallace College in Berea, Ohio, Tuesday, Aug. 5, 2008. (AP Photo/Alex Brandon)
Republican presidential candidate Sen. John McCain, R-Ariz. speaks during a town hall meeting, Thursday, Aug. 7, 2008, at the Veterans Memorial Civic and Convention Center in Lima, Ohio. (AP Photo/Mary Altaffer)
New York, UNITED STATES: Michelle Obama, wife of Democratic presidential hopeful and US Senator Barack Obama, D-IL, introduces her husband at a fundraiser 09 March 2007 in New York. The son of a Kenyan father and a white American mother, Obama is seeking to answer skeptics who doubt that he understands the experience of African-Americans. AFP PHOTO/Stan HONDA (Photo credit should read STAN HONDA/AFP/Getty Images)
** FILE PHOTO ** In this July 29, 2008 file photo, Gov. Sarah Palin speaks to reporters regarding the indictment of U.S. Sen Ted Stevens in her Capitol office in Juneau, Alaska. As the political community turned desperate for any clues about the potential running mate of Republican Presidential candidate, Sen. John McCain, R-Ariz., speculation moved toward several dark horse candidates including Alaska Gov. Sarah Palin, the so-called "hockey mom" credited with reforms of her tiny, out-of-the-way state. (AP Photo/Juneau Empire, Brian Wallace)
Republican presidential candidate, Sen. John McCain, R-Ariz, picks out four bottles of salsa and waits to pay for them at El Pinto restaurant for hinself and his vice presidential running mate, Alaska Gov. Sarah Palin, right, Sunday afternoon, Sept. 7, 2008 in Albuquerque, N.M. (AP Photo/Stephan Savoia)
In this photo released by Warner Bros., talk show host Ellen DeGeneres dances with Michelle Obama during her appearance on "The Ellen DeGeneres Show" on Wednesday, Sept. 3, 2008, in Los Angeles. The episode will air on the show's season premiere on Monday, Sept. 8. (AP Photo/ Warner Bros., Michael Rozman) ** NO SALES **
Democratic presidential candidate Sen. Barack Obama, D-Ill. gestures while speaking at a town hall meeting, Monday, Sept. 8, 2008, at Mott Community College Regional Technology Center in Flint, Mich. (AP Photo/Chris Carlson)
Democratic vice presidential candidate Sen. Joe Biden, D-Del., speaks to supporters at a town hall meeting, Monday, Sept. 8, 2008, Green Bay Wis. (AP Photo/Darren Hauck)
Democratic presidential candidate Sen. Barack Obama, D-Ill., addresses supporters at Lebanon High School High School in Lebanon, Va., Tuesday, Sept. 9, 2008. (AP Photo/Don Petersen)
Republican presidential candidate Sen., John McCain, R-Ariz., and his wife Cindy, left, participate in a round table discussion with women in business, Wednesday, Sept. 10, 2008 at the Down Home Diner in Philadelphia. (AP Photo/Stephan Savoia)
Republican presidential candidate Sen. John McCain, R-Ariz., flanked by his running-mate, Alaska Gov. Sarah Palin, left, and his wife Cindy, gestures during a rally in Fairfax, Va. Wednesday, Sept. 10, 2008. (AP Photo/Gerald Herbert)
Rep. Ron Paul, R-Texas, a former 2008 presidential candidate, gestures during a news conference at the National Press Club in Washington, Wednesday, Sept. 10, 2008, with third-party candidates to call for greater inclusion of candidates beyond the Republican and Democratic majorities. (AP Photo/J. Scott Applewhite)
Democratic presidential candidate Sen. Barack Obama, D-Ill., talks with students in a Freshman Leadership class, Wednesday, Sept. 10, 2008, at Granby High School in Norfolk, Va. (AP Photo/Chris Carlson)
Democratic presidential candidate Sen. Barack Obama, D-Ill. speaks during a town hall meeting at Granby High School in Norfolk, Va., Wednesday, Sept. 10, 2008. (AP Photo/Chris Carlson)
Republican vice presidential candidate Alaska Gov. Sarah Palin signs autographs for an overflow crowd of supporters after a campaign rally in Lancaster, Pa., Tuesday, Sept. 9, 2008. (AP Photo/Stephan Savoia)
In this image released by ABC, ABC News anchor Charles Gibson talks to Republican vice presidential candidate Gov. Sarah Palin in Fairbanks, Alaska in an interview, Thursday, Sept. 11, 2008. The first excerpts will air Thursday on "World News with Charles Gibson" and "Nightline." On Friday, portions of the interview will air on "Good Morning America," "World News," "Nightline" and a special one-hour "20/20." (AP Photo/ABC, Donna Svennik) ** NO SALES **
Democratic presidential candidate Sen. Barack Obama, D-Ill. meets with former President Bill Clinton in New York, Thursday, Sept. 11, 2008. (AP Photo/Chris Carlson)
Republican presidential candidate, Sen., John McCain, R-Ariz., and Democratic presidential candidate, Sen., Barack Obama, D-Ill., talk as they walk together after participating in a Ground Zero 9/11 memorial observance Thursday, Sept. 11, 2008 in New York. McCain's wife Cindy, left, looks on. (AP Photo/Stephan Savoia)
Republican presidential candidate, Sen., John McCain, R-Ariz., left, greets Democratic presidential candidate, Sen., Barack Obama, D-Ill., before Obama begins and after McCain finished participation in a forum on national service at Columbia University., Thursday night, Sept. 11, 2008. (AP Photo/Stephan Savoia)
Democratic presidential candidate Sen. Barack Obama, D-Ill. speaks at a campaign event at the McConnell Center in Dover, N.H., Friday, Sept. 12, 2008. (AP Photo/Chris Carlson)
Republican vice presidential candidate, Alaska Gov. Sarah Palin, speaks during a deployment ceremony for the 1st Stryker Brigade Combat Team, 25th Infantry Division at Fort Wainwright in Fairbanks, Alaska Thursday, Sept. 11, 2008. Palin's son Track Palin is a member of the brigade being deployed to Iraq. (AP Photo/ Al Grillo)
Republican vice presidential candidate, Alaska Gov. Sarah Palin, is Col. Edward Daly, deputy commander of the U.S. Army in Alaska, during the st Stryker Brigade Combat Team, 25th Infantry Division deployment ceremony Thursday Sept. 11, 2008, at Fort Wainwright in Fairbanks, Alaska. Palin was a guest speaker at the ceremony and addressed 4,000 troops, one of which is her son Trak Palin. (AP Photo/Rob Stapleton)
In this image released by ABC, Republican presidetial candidate Sen. John McCain, R-Ariz., center, listens as host Barbara Walters speaks with Cindy McCain during a broadcast of "The View," Friday, Sept. 12, 2008, in New York. (AP Photo/ABC, Steve Fenn) ** NO SALES **
Democratic vice presidential candidate Sen. Joe Biden, D-Del., right, listens to Brook Park, Ohio firefighter Jim Astorino, in Parma, Ohio Thursday, Sept. 11, 2008. Biden met with local police and firefighters in this Cleveland suburb on the anniversary of the Sept. 11 attacks. (AP Photo/Mark Duncan)
Democratic presidential candidate Sen. Barack Obama, D-Ill., arrives for a rally at the Veterans Memorial Park in Manchester, N.H., Saturday, Sept. 13, 2008. (AP Photo/Cheryl Senter)
Democratic presidential candidate Sen. Barack Obama, D-Ill., speaks during a rally in Manchester, N.H., Saturday, Sept. 13, 2008. (AP Photo/Chris Carlson)
Republican vice presidential candidate, Alaska Gov. Sarah Palin, talks about her running mate, Republican presidential candidate, Sen. John McCain, R-Ariz., at the Dena'INA Civic and Convention Center Saturday, Sept. 13, 2008 in Anchorage, Alaska. (AP Photo/Matt Hage)
Republican vice presidential candidate, Alaska Gov. Sarah Palin, waves to supporters after her speech at a campaign rally in Golden, Colo., Monday, Sept. 15, 2008. (AP Photo/Ed Andrieski)
Democratic presidential candidate Sen. Barack Obama, D-Ill. walks to greet supporters at the airport after a rally in Grand Junction, Colo., Monday, Sept. 15, 2008. (AP Photo/Chris Carlson)
Edward O'Callaghan, left, and Megan Stapleton, spokespersons with the McCain campaign, answer questions concerning the firing of former public safety commissioner Walt Monegan during a news conference in Anchorage, Alaska Monday Sept. 15, 2008. Lawyers for Alaska Gov. Sarah Palin have released e-mails detailing what they say is the real reason she dismissed Walt Monegan, the public safety commissioner whose firing prompted the "Troopergate" controversy. (AP Photo/Al Grillo)
Democratic presidential candidate Sen. Barack Obama, D-Ill. addresses supporters at a rally in Golden, Colo., Tuesday, Sept. 16, 2008. (AP Photo/Ed Andrieski)
Democratic presidential candidate Sen. Barack Obama, D-Ill., speaks to supporters at a rally in Golden, Colo., Tuesday, Sept. 16, 2008. (AP Photo/Ed Andrieski)
Trader Luke Dalton, foreground, watches the numbers from the floor of the New York Stock Exchange near the end of the trading day, Tuesday Sept. 16, 2008. Wall Street ended another tumultuous session with a sizable gain Tuesday, partly recovering from its worst sell-off in years after the Federal Reserve said it was keeping interest rates steady. (AP Photo/Richard Drew)
** FILE ** Republican vice presidential candidate, Alaska Gov. Sarah Palin speaks during a campaign rally in Golden, Colo., Monday, Sept. 15, 2008. (AP Photo/Jack Dempsey)
Republican vice presidential candidate, Alaska Gov., Sarah Palin, listens as her running mate, presidential candidate Sen. John McCain, R-Ariz., delivers a policy speech on the countries current economic crisis, Friday, Sept. 19, 2008, in Green Bay, Wis. (AP Photo/Stephan Savoia)
Democratic presidential candidate Sen. Barack Obama, D-Ill. shakes hand as he arrives for a rally in Coral Gables, Fla., Friday, Sept. 19, 2008. (AP Photo/Chris Carlson)
Republican presidential candidate, Sen., John McCain, R-Ariz., and his vice presidential running mate, Alaska Gov., Sarah Palin, wave to supporters as they enter a campaign rally in Green Bay, Wis., Thursday night, Sept. 18, 2008. (AP Photo/Stephan Savoia)
Republican vice presidential running mate Alaska Gov. Sarah Palin addresses supporters in Vienna, Ohio, Tuesday, Sept. 16, 2008. (AP Photo/Stephan Savoia)
Republican presidential candidate Sen. John McCain, R-Ariz., delivers a policy speech on the countries current economic crisis, Friday, Sept. 19, 2008, in Green Bay, Wis. (AP Photo/Stephan Savoia)
Democratic presidential candidate Sen. Barack Obama, D-Ill. center, talks with former Federal Reserve Board Chairman Paul Volcker, left, and former Treasury Secretary Robert Rubin, Friday, Sept. 19, 2008, in Coral Gables, Fla., during a meeting with his top economic advisers. (AP Photo/Chris Carlson)
Republican presidential candidate Sen. John McCain, R-Ariz., accompanied by his running mate, Alaska Gov. Sarah Palin, speaks during a rally for business leaders, Friday, Sept. 19, 2008, in Green Bay, Wis. (AP Photo/Mike Roemer)
Sen. John McCain, R-Ariz., walks through the Capitol after leaving the office of House Republican Leader, Rep. John Boehner, R-Ohio, Thursday, Sept. 25, 2008, on Capitol Hill in Washington. (AP Photo/Lauren Victoria Burke)
In this photo provided by CBS News, CBS News anchor Katie Couric interviews Republican Presidential candidate, Sen. John McCain, Wednesday, Sept. 24 in New York. The interview aired on that evening's CBS Evening News With Katie Couric. (AP Photo/CBS News, J.P. Filo) **MANDATORY CREDIT; NO SALES; NO ARCHIVE; NORTH AMERICA USE ONLY**
Democratic vice presidential candidate, Joe Biden, D-Del., collects himself while telling a story during a visit to Greensburg-Salem High School in Greensburg, Pa., on Thursday, Sept. 25, 2008. Biden spoke of the visit by former Pittsburgh Steelers running back Rocky Bleir to the hospital room of his critically injured son after a car accident in which his first wife and 2-year-old daughter were killed. (AP Photo/Gene J. Puskar)
Republican vice presidential candidate Sarah Palin, right, and Cindy McCain, wife of Republican presidential candidate, Sen. John McCain, R-Ariz.,listen to McCain speak at the Clinton Global Initiative in New York, Thursday, Sept. 25, 2008. (AP Photo/Gerald Herbert)
Jason Griffin prepares the site for the Presidential Debate, Thursday, Sept. 25, 2008, at the University of Mississippi in Oxford. The first debate between the presidential nominees, Republican John McCain and Democrat Barack Obama, is scheduled for Friday. (AP Photo/Charles Dharapak)
Democratic vice presidential candidate Sen. Joe Biden, D-Del., speaks at a fire station Friday, Sept. 26, 2008, in Cudahy, Wis. (AP Photo/Morry Gash)
Republican presidential candidate Sen. John McCain, R-Ariz., left, shakes hands with Democratic presidential candidate Sen. Barack Obama prior to the start of the presidential debate, Friday, Sept. 26, 2008, at the University of Mississippi in Oxford, Miss.. (AP Photo/Charles Dharapak)
Protesters march outside of the U.S Treasury building in protest of the proposed Wall Street bailouts, Friday Sept. 26, 2008, in Washington. (AP Photo/Jacquelyn Martin)
President Bush makes a statement about the economy, Monday, Sept. 29, 2008, on the South Lawn of the White House in Washington. (AP Photo/Charles Dharapak)
Republican presidential candidate, Sen. John McCain, R-Ariz., and vice presidential candidate, Alaska Gov. Sarah Palin, arrive at a rally with her daughter Willow in Columbus, Ohio, Monday, Sept. 29, 2008. (AP Photo/Gerald Herbert)
Vice presidential candidate, Alaska Gov. Sarah Palin, arrives at a rally with Republican presidential candidate, Sen. John McCain, R-Ariz., not shown, in Columbus, Ohio, Monday, Sept. 29, 2008. (AP Photo/Gerald Herbert)
The outside of the Word of Outreach Christian Church is seen, Sunday, Sept. 28, 2008 in Little Rock, Ark. On Sunday, ministers around the country plan to break the law, endorsing presidential candidates during their sermons despite IRS rules prohibiting such endorsements for tax-exempt non-profits. A minister was scheduled to fly into Little Rock Sunday to endorse a presidential candidate at the Word of Outreach Christian Church, but because of flight delays, did not make it. (AP Photo/Mike Wintroath)
Republican presidential candidate Sen. John McCain, R-Ariz., and his running mate, Alaska Gov. Sarah Palin, participate in a rally in Columbus, Ohio, Monday, Sept. 29, 2008. (AP Photo/Gerald Herbert)
Republican presidential candidate, Sen. John McCain, R-Ariz., arrives at his headquarters in Arlington, Va., Wednesday, Oct. 1, 2008. McCain and Democratic presidential nominee Barack Obama returned to Washington for the vote on the financial rescue plan in U.S. Senate late Wednesday. At left is a Secret Service agent. (AP Photo/Gerald Herbert)
** CAPTION ADDITION ADDS ID OF MAN ON LEFT ** This photo provided by the Palin Campaign shows Republican vice presidential nominee and Alaska Gov. Sarah Palin, right, preparing for her first and only debate with Democratic vice presidential nominee Joe Biden at the Sedona, Ariz., ranch of her running-mate, Sen. John McCain, Tuesday, Sept. 30, 2008. On the left is McCain-Palin campaign senior policy advisor Randall Scheunemann. The debate will take place Thursday in St. Louis, Mo. (AP Photo/Palin Campaign)
Republican vice presidential candidate, Alaska Gov. Sarah Palin, speaks during a rally in Carson, Calif., Saturday, Oct. 4, 2008. (AP Photo/Chris Carlson)
Former presidential candidate Sen. Hillary Clinton, D.-N.Y., speaks to the media Friday Oct. 3, 2008 flanked by Jose Villareal after attending a private fundraiser at the Villareal's Monte Vista home in San Antonio, Texas. (AP Photo/San Antonio Express-News, William Luther) ** MAGS OUT NO SALES SAN ANTONIO OUT **
Democratic presidential candidate Sen. Barack Obama, D-Ill., speaks to media about the economy at The Grove Park Inn in Asheville, N.C. Monday, Oct. 6, 2008. (AP Photo/Alex Brandon)
Republican presidential candidate Sen. John McCain, R-Ariz., arrives for a technical walk-through of the debate site in advance of the presidential debate with Democrat rival Barack Obama at Belmont University in Nashville, Tenn., Tuesday, Oct. 7, 2008. Seen in profile next to McCain is his wife Cindy McCain. (AP Photo/Charles Dharapak)
Riggers lift scaffolding into place in front of the Curb Events event site at Belmont University in Nashville, Tenn., Monday, Oct. 6, 2008, as preparations continue for Tuesday's presidential debate. (AP Photo/J. David Ake)
Democratic presidential candidate Sen. Barack Obama, D-Ill., climbs the steps of his campaign plane at the airport in Asheville, N.C., Tuesday, Oct. 7, 2008, en route to Nashville, Tenn., for the second of three presidential debates with Republican rival John McCain. (AP Photo/Alex Brandon)
In this photo provided by John Howe, John Howe, right, his wife Linda, left, and dog Jane are shown in Kingsville, Texas, Tuesday, Sept. 30, 2008. (AP Photo/John Howe) ** NO SALES **
Republican vice presidential candidate Gov. Sarah Palin, R-Alaska, speaks to supporters and members of the media at a rally, Tuesday, Oct. 7, 2008, at The Jacksonville Landing in Jacksonville, Fla. (AP Photo/Jake Roth)
Federal Reserve Chairman Ben Bernanke, speaks to the National Association for Business Economics, Tuesday, Oct. 7, 2008, in Washington. Bernanke warned that the financial crisis has not only darkened the country's current economic performance but also could prolong the pain. "The outlook for economic growth has worsened," Bernanke said. (AP Photo/Manuel Balce Ceneta)
Cindy Sheehan walks with her dog Petey next to her campaign van outside her headquarters in San Francisco, Tuesday, Sept. 30, 2008. Sheehan is running independently for U.S. Congress for the 9th District seat currently occupied by House Speaker Nancy Pelosi. She says she wants Pelosi's, because the 11-term congresswoman has led the House for two years without making good on a promise to end the war. (AP Photo/Marcio Jose Sanchez)
Speaker of the House, Rep. Nancy Pelosi, D-Calif., talks with reporters during a news conference on Capitol Hill announcing the approval of the financial rescue package sent to the White House for President Bush to approve, Friday, Oct. 3, 2008 in Washington. (AP Photo/Pablo Martinez Monsivais)
Republican presidential candidate, Sen. John McCain, R-Ariz., and vice presidential running mate, Alaska Gov. Sarah Palin, participate in a rally in Allentown, Pa., Wednesday, Oct. 8, 2008. (AP Photo/Gerald Herbert)
Republican vice-presidential candidate, Gov. Sarah Palin, waves to supporters before a campaign speech at Minges Coliseum on the campus of East Carolina University Tuesday Oct. 7, 2008, in Greenville, N.C. (AP Photo/Jim R. Bounds)
Republican presidential candidate Sen. John McCain, R-Ariz., and his wife Cindy, arrive at a rally in La Crosse, Wis., Friday, Oct. 10, 2008. (AP Photo/Gerald Herbert)
Republican presidential candidate Sen. John McCain, R-Ariz. arrives at a rally in La Crosse, Wis., Friday, Oct. 10, 2008. (AP Photo/Gerald Herbert)
Democratic presidential candidate Sen. Barack Obama, D-Ill. takes the stage at a rally in front of the Ross County Courthouse in Chillicothe, Ohio, Friday, Oct. 10, 2008.(AP Photo/Alex Brandon)
Students hold up a photograph of Cuban leader Fidel Castro as they sing in honor to late Argentine-born revolutionary hero Ernesto "Che" Guevara in Havana, Wednesday, Oct. 8, 2008. Cuba marks the 41st anniversary of "Che" Guevara's death on Oct. 8, although he was killed on Oct. 9, 1967 in the town of La Higuera, Bolivia.(AP Photo/Javier Galeano)
Republican presidential candidate, Sen. John McCain, R-Ariz., walks from his campaign bus to his campaign plane to depart Moline, Ill., Saturday, Oct. 11, 2008. (AP Photo/Gerald Herbert)
Republican presidential candidate, Sen. John McCain, R-Ariz., campaigns at Robert Morris University in Moon Township, Pa., Tuesday, Oct. 21, 2008. (AP Photo/Gene J. Puskar)
Republican vice presidential candidate, Alaska Gov. Sarah Palin gestures while speaking at the University of Findlay in Findlay, Ohio, Wednesday, Oct. 22, 2008 (AP Photo/Madalyn Ruggiero)
Frank Gwartney, an Anchorage Democrat who supports Democratic presidential candidate Sen. Barack Obama, D-Ill., talks in Anchorage, Alaska, Wednesday, Oct. 29, 2008, about an ethics complaint he filed against Alaska Gov. Sarah Palin, accusing her of abusing her power by charging the state when her children traveled with her. (AP Photo/Al Grillo )
Republican presidential candidate Sen. John McCain, R-Ariz., prepares to give a brief statement during a campaign stop at Baron Sign Manufacturing in Riviera Beach, Fla. on Wednesday, Oct. 29, 2008. (AP Photo/Pool, Alex Boerner)
Republican vice presidential candidate, Alaska Gov. Sarah Palin speaks to supporters, Thursday, Oct. 30, 2008, in Cape Girardeau, Mo. (AP Photo/Jeff Roberson)
Democratic presidential candidate Sen. Barack Obama, D-Ill. speaks during a rally in Elko, Nev., Wednesday, Sept. 17, 2008. (AP Photo/Chris Carlson)
In this still photo taken from video, Richard Graves is shown reflected in a photograph of himself as a young soldier in the U.S. Marine Corps, Friday, Oct. 3, 2008, in his home in Seattle. Graves says that his experience serving in the Marine Corps during the Vietnam War and his opinions on the current War in Iraq have been strong factors as he makes up his mind prior to the presidential election. (AP Photo/Ted S. Warren)
** ADDS FIRST NAME SAMUEL ** Samuel "Joe The Plumber" Wurzelbacher speaks at a rally for Republican presidential candidate Sen. John McCain, R-Ariz. at a Town Square Stop in Washington Park in Sandusky, Ohio, Thursday, Oct. 30, 2008. (AP Photo/Carolyn Kaster)
Cindy McCain, wife of Republican presidential candidate Sen. John McCain, R-Ariz., listens to her husband address supporters during a campaign stop in Hanoverton, Ohio., Friday, Oct. 31, 2008. (AP Photo/Stephan Savoia)
** FILE ** In this Wednesday, Oct. 29, 2008 file photo, Michelle Obama, wife of Democratic presidential candidate Sen. Barack Obama, D-Ill., smiles as she is cheered during the Annual General Baptist State Convention in Fayetteville, N.C. Cindy McCain and Michelle Obama have carved out very different approaches to the campaign now drawing to a close. (AP Photo/Sara D. Davis)
Timothy Petumenos, an independent investigator hired by the Alaska Personnel Board, address the board in Anchorage, Alaska Monday, Nov. 3, 2008, after the they announced the release of the report detailing whether Alaska Gov. Sarah Palin abused her power by firing her public safety commissioner. (AP Photo/Al Grillo)
Supporters arrive for the election night party for Democratic presidential candidate Sen. Barack Obama, D-Ill., at Grant Park in Chicago, Tuesday night, Nov. 4, 2008. (AP Photo/Morry Gash)
President-elect Barack Obama, left, and Vice President-elect Joe Biden celebrate after Obama's acceptance speech at the election night rally in Chicago, Tuesday, Nov. 4, 2008. (AP Photo/Jae C. Hong)
House Speaker Nancy Pelosi of Calif. gestures during a news conference on Capitol Hill in Washington, Wednesday, Nov. 5, 2008, to discuss Tuesday's presidential election. (AP Photo/Susan Walsh)
President-elect Barack Obama smiles as he gives his acceptance speech at Grant Park in Chicago Tuesday night, Nov. 4, 2008. (AP Photo/Morry Gash)
President Bush walks with President-elect Obama along the West Wing Colonnade at the White House in Washington, Monday, Nov. 10, 2008, to the Oval Office for a private meeting. (AP Photo/Evan Vucci)
** FILE ** In this Aug. 22, 2008 file photo, a view of the over head screen projected on the wall at Distributive Network's Washington office. (AP Photo/Pablo Martinez Monsivais, File)
Alaska Gov. Sarah Palin speaks to the media as she arrives at the 2008 Republican Governors Association meeting in Miami, Fla., Wednesday, Nov. 12, 2008. Palin, who clearly is looking ahead to her political prospects in 2012, said Wednesday that a woman would be good for the Republican presidential ticket in four years. (AP Photo John Watson-Riley)
Alaska Gov. Sarah Palin waits to speak during a news conference at the Republican Governors Association Annual Conference in Miami, Thursday, Nov. 13, 2008. (AP Photo/Lynne Sladky)
** FILE ** In this Jan. 3, 2008, file photo, then Republican presidential hopeful, former Arkansas Gov. Mike Huckabee, speaks early on caucus day during a campaign stop in Grinnell, Iowa. Possible Republican presidential candidates already are making Iowa a winter destination four years before the leadoff caucuses, but some wonder if the state Republican Party's drift to the right could hurt its influence in choosing a nominee capable of winning back the White House. (AP Photo/Paul Sancya)
President George W. Bush, waves after delivering remarks on aviation congestion and transportation safety, Tuesday, Nov. 18,2008, at the Transportation Department in Washington. (AP Photo/Manuel Balce Ceneta)
Sen. Carl Levin, D-Mich., at podium gestures during a news conference on Capitol Hill in Washington, Thursday, Nov. 20, 2008, to discuss the auto industry bailout. From left are Sen. Arlen Specter, R-Pa., Sen. Christopher Bond, R-Mo., Sen. Sherrod Brown, D-Ohio, Levin, Sen. Debbie Stabenow, D-Mich., and Sen. George Voinovich, R-Ohio. (AP Photo/Gerald Herbert)
With curtain, wall cover and carpet samples in the background, Rep.-elect Parker Griffith, D-Ala., left, talks with Rep. Frank Kratovil, D-Md., on Capitol Hill in Washington, Friday, Nov. 21, 2008, during the House office lottery. (AP Photo/Susan Walsh)
Graphic charts the monthly changes in U.S. imports, exports and trade deficit; 1 c x 3 in; 46.5 mm x 76.2 mm
** FILE ** In this Dec. 1, 2008, file photo, Attorney General-designate Eric Holder speaks during a news conference with President-elect Barack Obama, right, in Chicago. (AP Photo/Charles Dharapak, File)
** FILE ** In this Nov. 24, 2008 file photo, Treasury Secretary-designate Timothy Geithner listens as President-elect Barack Obama speaks during a news conference in Chicago. When George Bush lifts off in his helicopter on Inauguration Day, leaving Washington to make way for Barack Obama, he may not be the only thing disappearing into the horizon. To a number of social analysts, historians, bloggers and ordinary Americans, Jan. 20 will symbolize the passing of an entire generation: the baby boomer years. (AP Photo/Charles Dharapak, File)
Former President George W. Bush, left, congratulates President Barack Obama following his inaugural address at the U.S. Capitol in Washington, Tuesday, Jan. 20, 2009. (AP Photo/Susan Walsh)
**FILE** Former Massachusetts Gov. Mitt Romney is shown in this 2008 file photo in Louisville, Ky. Romney, a potential candidate for the White House in 2012, accused President Barack Obama of answering to the "most extreme wing of the abortion lobby." (AP Photo/Jeff Chiu, FILE)
The port side damage to the guided missile destroyer USS Cole is pictured after a bomb attack during a refueling operation in the port of Aden in this October 12, 2000 file photo. U.S. military prosecutors have requested the death penalty for the alleged mastermind behind the bombing, the Pentagon said on June 30, 2008. Abd al-Rahim al-Nashiri, a Saudi Arabian national of Yemeni descent being held at Guantanamo Bay, Cuba, faces eight charges, including murder and terrorism, for the attack that killed 17 and wounded 47 sailors. REUTERS/Aladin Abdel Naby/Files (YEMEN)
U.S. President Barack Obama (2nd L) leaves an announcement on his meeting with Senate Banking and the House Financial Services Committee at the White House in Washington, February 25, 2009. REUTERS/Jim Young (UNITED STATES)
** FILE ** In this Thursday, June 19, 2008 file photo, a U.S. Marine takes cover behind an Iraqi Army humvee during the beginning of combat operations in Amarah, Iraq, 320 kilometers (200 miles) southeast of Baghdad. The United States will withdraw most of its troops from Iraq by August 2010, 19 months after President Barack Obama's inauguration day, according to administration officials who expect Obama to make the announcement this week. (AP Photo/Hadi Mizban,. File)
U.S actress Jennifer Aniston arrives for the UK premiere of the family comedy Marley & Me, in London's Leicester Square, Monday, March 2, 2009. (AP Photo/Joel Ryan)
** FILE ** A U.S. Border Patrol vehicle travels along the International border of Mexico, May 27, 2004, in Douglas, Ariz. A civilian group's plan to have volunteers near the border observe and report illegal immigrants and smuggling activity to the Border Patrol represents ``the recipe for a tragedy,'' the agency's top official in Tucson says. (AP Photo/Matt York, File)
House Financial Services Committee Chairman Rep. Barney Frank, D-Mass., right, huddles with Rep. Lynne Woolsey, D-Calif. on Capitol Hill in Washington, Tuesday, Feb. 24, 2009, during a news conference dealing with defense budget. (AP Photo/Lawrence Jackson)
A "cybernetic human" HRP-4C, designed to look like an average Japanese woman, looks surprised, opening its mouth and eyes in reaction during a demonstration in Tsukuba, near Tokyo, Monday, March 16, 2009. The humanoid robot having a female face and black hair trimmed down to 43 kilograms (95 pounds) to make a debut at a fashion show later in the month. (AP Photo/Koji Sasahara)
US Treasury Secretary Timothy Geithner, seen at a press conference at the G20 Finance Ministers meeting at a hotel near Horsham in England, Saturday, March 14, 2009. (AP Photo/Kirsty Wigglesworth)
This Feb. 2007 photo released Monday March 16, 2009 by New Hampshire Department of Corrections in Concord, N.H., shows of former inmate and convicted child killer Raymond Guay, 60. A federal judge in California has ordered Guay to serve out 2-and-a-half years parole in New Hampshire where he has ties. Guay is now staying with a pastor, The Rev. David Pinckney in rural Chichester, N.H. (AP Photo/New Hampshire Department of Corrections)
The Federal Reserve building is seen in Washington, Wednesday, March 18, 2009, after it announced that it will spend up to $300 billion over the next six months to buy long-term government bonds, a new step aimed at lifting the country out of recession by lowering rates on mortgages and other consumer debt. (AP Photo/Charles Dharapak)
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President Barack Obama responds to the applause in the crowd before his town hall meeting to discuss the economic recovery plan at Harborside Events Center in Fort Myers, Fla., on Tuesday,Feb. 10, 2009. Fort Myers is a community reeling from home foreclosures and job losses.(AP Photo/Willie J.Allen Jr., Pool)
** FILE ** In this Jan. 29, 2008 file photo, then Republican presidential hopeful, Sen. John McCain, R-Ariz., gives two thumbs up at his primary victory celebration in Miami. If the presidential election were decided by speeches alone, it would be over already. Barack Obama soars, John McCain struggles. Obama beams, McCain grins at the wrong time. (AP Photo/Alan Diaz, File)