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
1990 Conservative Party (UK) leadership election was John Major, little known to the public hitherto, who had briefly been promoted to succeed Howe as Foreign Secretary in July before succeeding Lawson as Chancellor in October, putting him in pole position to succeed Thatcher. In December 1989, Thatcher was challenged for the leadership for the first time since her election to that position in 1975, by the little known 69-year-old backbench MP Sir Anthony Meyer. Thatcher faced no serious threat of losing to this stalking horse challenger, but her political credibility was undermined by the fact that 60 members of the parliamentary Conservative party had not supported