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
2001 Conservative Party (UK) leadership election returned the party to government at the 2010 general election as the head of a Conservative and Liberal Democrat coalition and went on to win a majority five years later at the 2015 general election. 2001 Conservative Party (UK) leadership election The 2001 Conservative Party leadership election was held after the British Conservative Party failed to make inroads into the Labour government's lead in the 2001 general election. Party leader William Hague resigned, and a leadership contest was called under new rules Hague had introduced. Five candidates stepped forward: Michael Ancram, David Davis, Kenneth Clarke, Iain Duncan Smith and Michael