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
History of the Conservative Party (UK) over both Reginald Maudling and Enoch Powell. The party proceeded to lose the 1966 general election. Heath's leadership proved controversial, with frequent calls from many prominent party members and supporters for him to step down, but he persevered. To the shock of almost everyone bar Heath, the party won the 1970 general election. As with all British governments in this period, Heath's time in office was difficult. Furthermore, the Heath premiership remains one of the most controversial in the history of the party. Initial attempts to follow monetarist policies (later considered "Thatcherite") failed, with high inflation and unemployment blocking Heath's