British politician John Profumo (pictured) admitted that he had lied to the House of Commons about his involvement in a sex scandal with Christine Keeler, and resigned from government.

John Dennis Profumo was a British politician whose career ended in 1963 after a sexual relationship with the 19-year-old model Christine Keeler in 1961. The scandal, which became known as the Profumo affair, led to his resignation from the Conservative government of Harold Macmillan.

The House of Commons is the lower house of the Parliament of the United Kingdom. Like the upper house, the House of Lords, it meets in the Palace of Westminster in London, England. The House of Commons is an elected body consisting of 650 members known as members of Parliament (MPs), who are elected to represent constituencies by the first-past-the-post system and hold their seats until Parliament is dissolved.

The Profumo affair was a major scandal in British politics during the early 1960s. John Profumo, the 46-year-old Secretary of State for War in Harold Macmillan's Conservative government, had an extramarital affair with the 19-year-old model Christine Keeler beginning in 1961. Profumo denied the affair in a statement to the House of Commons in 1963; weeks later, a police investigation proved that he had lied. The scandal severely damaged the credibility of Macmillan's government, and Macmillan resigned as Prime Minister in October 1963, citing ill health. The fallout contributed to the Conservative government's defeat by the Labour Party in the 1964 general election.

Christine Margaret Keeler was an English model and showgirl. Her meeting at a dance club with society osteopath Stephen Ward drew her into fashionable circles. At the height of the Cold War, she became sexually involved with a married British government minister, John Profumo, as well as with a Soviet naval attaché, Yevgeny Ivanov. A shooting incident involving a third lover caused the press to investigate her, revealing that her affairs could be threatening national security. In the House of Commons, Profumo denied any improper conduct but later admitted to having lied.