Democratic presidential hopeful, Sen. Barack Obama, D-Ill., speaks as Oprah Winfrey reacts at a rally in Manchester, N.H., Sunday, Dec. 9, 2007.
Democratic presidential hopeful Sen. Hillary Rodham Clinton, D-N.Y., arrives at Canyon Springs High School in Las Vegas May 30, 2007.
Detail of figurines of U.S. politicians and 2008 presidential election candidates, left to right, Barack Obama, John McCain, Hillary Rodham Clinton and Rudolph Giuliani, sculpted by Italian craftsman Genny Di Virgilio, displayed in a shop on Nov. 14, 2007, in Naples, Campania region, southern Italy.
Attorney General Alberto Gonzales exits a news conference after taking questions from reporters March 13, 2007, at the Justice Department in Washington. Gonzales became the target of intense scrutiny over several controversies and faced pressure to resign, which he eventually did.
Idaho Sen. Larry Craig looks at his notes while he stands next to his wife, Suzanne, as he announces his resignation from the Senate during a news conference Sept. 1, 2007, in Boise, Idaho. Craig would later announce that he would finish his term but not seek reelection in 2008.
Even Presidential contenders are getting in on the Elvis act. Former Arkansas Gov. Mike Huckabee, second from left, invited an Elvis impersonator to join his band, Capital Offense, onstage at a campaign event in Ames, Iowa, on Aug 11, 2007.
U.S. Senator and Republican presidental hopeful John McCain, R-Ariz., addresses the National Rifle Association's 'A Celebration of American Values' meeting Sept. 21, 2007, in Washington. Several leading Republican presidential hopefuls stressed their gun-rights credentials to a room full of NRA members and leadership.
President Bush shakes hands with Speaker of the House Nancy Pelosi after his State of the Union speech in the Capitol in Washington, Jan. 23, 2007.
Former Senator Fred Thompson speaks to Jay Leno during a taping of "The Tonight Show With Jay Leno" Sept. 5, 2007, in Burbank, Calif. Thompson announced on the show that he is entering the race for president of the United States.
Republican presidential hopefuls former Massachusetts Gov. Mitt Romney, left, and former New York City Mayor Rudy Giuliani, right, share a laugh after a sound glitch during the Republican presidential primary debate hosted by Saint Anselm College in Manchester, N.H., June 5, 2007.
University of Florida student Andrew Meyer struggles with university police as officers try to remove him from a question and answer session with Sen. John Kerry, D-Mass., Monday, Sept. 17, 2007, in Gainesville, Fla. Meyer, 21, was tasered and arrested after he angrily and repeatedly tried to ask Kerry about the 2004 election and other subjects during a campus forum.
An animated snowman asks candidates a question during the CNN-YouTube Democratic presidential debate in Charleston, S.C., on July 23, 2007.
Former White House aide I. Lewis "Scooter" Libby walks past a line of photographers as he prepares to give a news conference outside federal court in Washington, March 6, 2007, after the jury reached its guilty verdict in Libby's perjury trial. He was later sentenced to serve jail time, but President Bush commuted his sentence.