Brian Mulroney supporting the merger at a time when former PC leaders Joe Clark, Jean Charest and Kim Campbell either opposed it or expressed ambivalence. Military historians Norman Hillmer and J.L. Granatstein ranked Mulroney eighth among Canada's prime ministers in their 1999 book "Prime Ministers: Ranking Canada's Leaders". On March 31, 2009 it was reported by various news outlets that a Conservative official claimed Mulroney was no longer a member of the party. They claimed his membership expired in 2006 and was not renewed. Additionally, Mulroney allegedly "called a senior party official two months ago to ask that his name be pulled
Electoral history of Brian Mulroney ranks seventh out of twenty-three prime ministers for time in office, serving one term of eight years, 281 days. He was the fifth of eight prime ministers from Quebec, the others being Sir John Abbott, Sir Wilfrid Laurier, Louis St. Laurent, Pierre Trudeau, Jean Chrétien, Paul Martin and Justin Trudeau. Mulroney was involved in politics from a young age, being active in the Progressive Conservative party while in university. Although he did not run for office, he was well-established within the party. In 1976 he ran for the leadership, but came in third, behind Joe Clark and Claude Wagner. However,