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
Brian Mulroney very formally acknowledged the various dignitaries and audience groups before delivering the shortest speech of the night: "Peter Newman: Go fuck yourself. Thank you ladies and gentlemen, and good night." Thirteen years after leaving office, Mulroney was named the "greenest" Prime Minister in Canadian history by a 12-member panel at an event organized by Corporate Knights magazine. In 2014, Mulroney became the chairman of Quebecor and defused tensions resulting from the continuing influence of former President and CEO Pierre Karl Péladeau. On December 5th 2018, Mulroney presented a eulogy for former U.S. President George H. W. Bush during the latter's