Chief of Staff to the Prime Minister (Canada) hold the formal title chief of staff. Bernard Roy, Brian Mulroney's principal secretary from 1984 to 1988, was the last principal secretary to act as head of the PMO before the creation of the chief of staff position. Chief of Staff to the Prime Minister (Canada) The Chief of Staff of Canada's Prime Minister's Office is the top official of the office. The position was created in 1987 to head the PMO. Prior to the creation of the chief of staff position, the office was headed by the Prime Minister's Principal Secretary, a position which is now secondary to the
Caroline Mulroney until August 2, 2017, when she took a leave of absence upon announcing her candidacy. On July 30, 2014, Minister of Transport Lisa Raitt appointed Mulroney and three other individuals, including Mark R. McQueen, who was an employer of Mulroney (under the name Lapham) at Wellington Financial and also was a former employee of Brian Mulroney's Prime Minister's office, to the Windsor–Detroit Bridge Authority, a body to oversee a second bridge across the Detroit River that separates Windsor, Ontario, from Detroit, Michigan. The authority will oversee the new bridge's $4 billion construction, and the management of the bridge, once it