1998: The Monica Lewinsky Oval Office sex scandal broke. Recorded conversations between Lewinsky and fellow Pentagon employee Linda Tripp revealed details of Lewinsky's sexual relationship with President Bill Clinton. The news of this extra-marital affair and the resulting investigation by Kenneth Starr eventually led to the impeachment of President Clinton by the U.S. House of Representatives. He was eventually acquitted of perjury and obstruction of justice charges in a Senate trial.
1998: Rep. Bob Livingston, R-La., resigned as Speaker of the House and Congress after Hustler Magazine threatened to publish an article detailing sexual indiscretions by Republican politicians, including the married Livingston. The Livingston scandal broke at the height of the Lewinsky scandal. Livingston was one of many Republicans demanding Clinton resign.
1998: A DNA study found that there is a DNA link between Thomas Jefferson's slave Sally Hemmings' descendants and the Jefferson family, but did not conclusively prove that Thomas Jefferson himself was their ancestor. Claims that Jefferson fathered children with Hemmings first arose during his first term as president.
2001: Rep. Gary Condit, D-Calif., became the subject of a political scandal after the disappearance of a Federal Bureau of Prisons intern, Chandra Levy. A police investigation revealed that Condit was having an affair with Levy and it was alleged that the affair may have led to her murder. Levy's remains were discovered in May 2002 by a man walking his dog in a secluded area of Rock Creek Park in Washington, D.C. The medical examiner declared that Levy's death was the result of homicide. The case remains unsolved. Condit lost a primary election in 2002 and left Congress at the end of his term in 2003.
2003: An attorney for the family of Sen. Strom Thurmond, R-S.C., confirmed that Thurmond fathered a child with a African-American teenage housekeeper when he was 22 years old. He fathered the child with Carrie Butler, then a 16-year-old maid in the Thurmond household. Six months after Thurmond's death, Essie Mae Washington-Williams, a 78-year-old retired school teacher, revealed that the former senator was her father. Thurmond ran for president in 1948 as a "Dixiecrat," who believed strongly in racial segregation and was opposed to the Democratic Party's civil rights program.
2004: Disgruntled Hill staffer Jessica Cutler's sexploits were exposed when D.C. gossip blogger Wonkette found Cutler's online diary. Cutler's affairs involved high-level Senate and federal employees -- one of whom paid her $400 for a lunchtime liaison. Cutler, better known as the Washingtonienne, was fired from Sen. Mike DeWine's office for "unacceptable use of Senate computers." She went on to write a book based on her experiences.
2006: Rep. Mark Foley, R-Fla., resigned after ABC News confronted him with excerpts of instant messages he had sent to underage current and former Congressional pages. Foley, under the AOL Instant Messenger screen name Maf54, made repeated references to sexual acts and body parts. Foley remains under investigation.
2007: Deputy Secretary of State Randall L. Tobias becomes the first D.C. official to resign over his links to Jeane Palfrey's escort service. The alleged "D.C. Madam" is facing federal charges. She says she plans to call Tobias and a list of other prominent clients to testify in her trial.