1990 Conservative Party (UK) leadership election only to lose it again at the 2017 general 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
1975 Conservative Party (UK) leadership election with the 1922 Committee that there would be a review of the rules for leadership elections and subsequently he would put himself up for re-election. A review was conducted under the auspices of Heath's predecessor Sir Alec Douglas-Home. Two recommendations were made, though neither was to make a difference in 1975 (although they would prove crucial in future years). The leader would henceforth be elected annually, whether the party was in opposition or government, in the period following a Queen's Speech, though in most years this would prove a formality. Also on the first round the requirement for a victorious