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
1936 Conservative Party of Ontario leadership election out but various delegates shouted from the floor demanding the results and the vote totals were read out. First ballot: Second ballot: See also: Progressive Conservative Party of Ontario leadership conventions 1936 Conservative Party of Ontario leadership election A Conservative Party of Ontario leadership election (formally the convention of the Liberal-Conservative Association of Ontario) was held the week of May 25, 1936 at the Royal York Hotel in Toronto culminating in a ballot for leader on May 28, 1936 to replace retiring Conservative leader and former premier George S. Henry, who had resigned after his party lost the 1934 provincial