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
Brian Mulroney in 1988. The Stanfield-led Progressive Conservatives lost the 1974 election to the Pierre Trudeau-led Liberals, leading to Stanfield's resignation as leader. Mulroney, despite never having run for elected office, entered the contest to replace him. Mulroney and provincial rival Claude Wagner were both seen as potentially able to improve the party's standing in Quebec, which had supported the federal Liberals for decades. Mulroney had played the lead role in recruiting Wagner to the PC party a few years earlier, and the two wound up as rivals for Quebec delegates, most of whom were snared by Wagner, who even blocked Mulroney