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
1971 Progressive Conservative Party of Ontario leadership election Conservatives. In terms of delegates, Lawrence and Davis were virtually tied. The deciding factor was the sitting MPPs who voted almost entirely for Davis. 1971 Progressive Conservative Party of Ontario leadership election The 1971 Progressive Conservative Party of Ontario leadership election was held on February 12 of that year to replace retiring premier John Robarts. The party selected Bill Davis on the fourth ballot. The change in leadership came about when John Robarts announced his retirement plans on December 1, 1970. Five sitting members quickly announced their intention to vie for the leadership. Bill Davis was the early front runner