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 after Bouchard defected from her father's party to the Bloc Québécois. In 1990, she helped canvass for Ontario PC candidate Alex Burney in the 1990 Ontario election. Mulroney came to prominence in 1991, during her father's tenure as prime minister, when "Frank" magazine ran a satirical advertisement for a contest inviting young Tories to "Deflower Caroline Mulroney". Mulroney's father was incensed and threatened physical harm toward those responsible before joining several women's groups in denouncing the ad as an incitement to rape. Mulroney supported her father during the Oliphant hearings where he admitted to taking $225,000 in cash from Karlheinz