Electoral history of Brian Mulroney he ended in third place on the fourth ballot, behind Joe Clark, who won the leadership, and Claude Wagner, who came in second. Following a leadership review at the 1983 Progressive Conservative convention, Clark triggered a leadership convention, in which he stood for re-election. Mulroney again entered the leadership race. This time, he defeated Clark and succeeded him as party leader. Electoral history of Brian Mulroney This article is the Electoral history of Brian Mulroney, the eighteenth Prime Minister of Canada. A conservative, he served one term as Prime Minister (1984-1993). He led the Progressive Conservative Party of Canada in
Deputy Prime Minister of Australia leader of the Country Party (subsequently the National Party). That continues to be case when the Coalition is in government. In the case of Labor governments, the party's deputy leader was and continues to be the Deputy Prime Minister. On 19 December 1967, John McEwen, the long-serving leader of the Country Party in the Coalition government, was sworn in as interim Prime Minister following the sudden death in office of Prime Minister Harold Holt. (There was discussion that deputy Liberal leader and Treasurer William McMahon should assume the office. McMahon had planned a party room meeting on 20 December to