1990 Conservative Party (UK) leadership election 1990 Conservative Party (UK) leadership election The 1990 Conservative Party leadership election in the United Kingdom took place on 20 November 1990 following the decision of Michael Heseltine, former Defence and Environment Secretary, to challenge Margaret Thatcher, the incumbent Prime Minister, for leadership of the Conservative Party. Thatcher failed to win outright under the terms of the election in the first ballot, and was persuaded to withdraw from the second round of voting. She announced her resignation on the morning of 22 November 1990, ending more than 15 years as Conservative leader and 11 years as Prime Minister. Discontent with
1997 Conservative Party (UK) leadership election 1997 Conservative Party (UK) leadership election The 1997 Conservative Party leadership election was triggered in the British Conservative Party when John Major resigned on 2 May 1997, following his party's landslide defeat at the 1997 general election, which ended 18 years of Conservative Government of the United Kingdom. Major had been Conservative leader and Prime Minister since November 1990. The following candidates announced their intention to stand: In the months before the general election a number of other prominent Conservatives were talked about as potential leaders; however, several failed to hold their seats in the general election including the following: