The Lewinsky scandal is a political-sex scandal emerging from a sexual relationship between United States President Bill Clinton and a then 22-year-old White House intern, Monica Lewinsky. The news of this extra-marital affair and the resulting investigation eventually led to the impeachment of President Clinton in 1998 by the U.S. House of Representatives and his subsequent acquittal on all charges (of perjury and obstruction of justice) in a 21-day Senate trial.

In 1995, Monica Lewinsky, a graduate of Lewis & Clark College, was hired to work as an intern at the White House during Clinton's first term. The two began a sexual relationship. As Lewinsky's relationship with Clinton became more distant and after she had left the White House to work at the Pentagon, Lewinsky confided details of her feelings and Clinton's behavior to her friend and Defense Department co-worker Linda Tripp, who secretly recorded their telephone conversations. When Tripp discovered in January 1998 that Lewinsky had signed an affidavit in the Paula Jones case denying a relationship with Clinton, she delivered the tapes to Kenneth Starr, the independent counsel who was investigating Clinton on various other matters, including the Whitewater scandal, Filegate, and Travelgate.