Sen. David Vitter admitted his guilt in the D.C. Madam scandal in 2007. His phone number had been published in 2009 in a list of phone records from a prostitution ring Deborah Jeane Palfrey, also known as the "D.C. Madam." Three years later he was reelected to the Senate. REUTERS/Lee Celano /Landov
Former Rep. Anthony Weiner, D-New York, resigned from Congress in 2011 after being embroiled for weeks in a sex scandal linked to his lewd online exchanges with women. Weiner announced in May that he was running for mayor of New York City, saying in a video announcing his campaign, "I hope I get a second chance to work for you." Weiner's comeback bid suffered a potential setback Tuesday, July 23, when he acknowledged more sexually tinged exchanges with an unnamed woman. "What I did was wrong," Weiner said in a statement about the newly emerged communications. TIMOTHY A. CLARY/AFP/Getty Images
Former New York Gov. Eliot Spitzer, who resigned in 2008 after it was revealed that he had spent thousands of dollars on prostitutes, says he plans to run for New York City's comptroller. "I accepted responsibly for what I did," Spitzer said. "I spent five years of working, doing useful things, and I hope the public will offer me an opportunity." Despite taking knocks from the press, the voters and, in some cases, the law, other politicians have pursued redemption in their public image or, in some cases, a return to office. Andrew Burton/Getty Images
Former Gov. Mark Sanford endured heavy criticism and being the butt of jokes until his term ended after he admitted in 2009 that his six-day hiking trip on the Appalachian Trail was actually a cover for a trip to Argentina to visit his mistress. In May, Sanford won election against Democrat Elizabeth Colbert Busch for an open seat in the U.S. House, despite being heavily outspent by Democrats and without the backing of national Republicans. Davis Turner/Getty Images
Bill Clinton had a scandalous presidency, most famously having an affair with an intern that prompted his impeachment. Since, he has become an important figure in worldwide humanitarian efforts and informal adviser to President Obama. JOYCE NALTCHAYAN/AFP/Getty Images
Former Speaker of the House Newt Gingrich left his position in disgrace after the Clinton impeachment proceedings in 1998. It was also later revealed that he was having an affair with a Congressional staffer, now his current wife Callista. Gingrich had an unsuccessful bid for the Republican presidential nomination in 2012 and is now seen as an elder party statesman, regularly appearing in the media on conservative issues. JEWEL SAMAD/AFP/Getty Images
Before becoming an adviser for Homeland Security, retired Sen. Gary Hart was the front-runner of the 1988 Democratic primaries for president until images of him with a model surfaced, ending his campaign. Chip Somodevilla/Getty Images
Former Rep. Dennis Kucinich, D-Ohio, has had many ups and downs in his political career, first becoming mayor of Cleveland, at the age of 31, and then losing a bid for reelection. Kucinich was later elected to the Senate and then the U.S. House but lost when he ran for president in 2004 and again in 2008. Spencer Platt/Getty Images)
Marion Barry is sworn in as the mayor of Washington with his wife, Cora Masters Barry, at his side, in 1995. Four years earlier, he was forced from the mayor's office, and later imprisoned, for being caught on videotape smoking crack. ROBERT GIROUX/AFP/Getty Images
Richard Nixon resigned in disgrace in 1974 after the Washington Post broke the story on his role in the Watergate burglary. But before being elected president, Nixon was Dwight Eisenhower's vice president. He lost his first presidential election to John F. Kennedy in 1960, and then lost the governor's race in California in 1962. However, in 1968, he got the GOP nomination and defeated Hubert Humphrey in the general election to become president. Washington Bureau/Getty Images