Office of the Prime Minister (Canada) December 21, 2015, the new Prime Minister Justin Trudeau was still in the process of hiring staff. However, he announced some key positions as well as his office's directorates: The Office of the Prime Minister was a fairly weak and secondary group before Pierre Trudeau became prime minister in 1968, after whose appointment much of what had previously been the responsibility of the Privy Council Office was shifted to the PMO. After that point, the PMO became more central to the government, and many of Trudeau's economic and constitutional initiatives were launched with the aid and advice of its staff.
Acting prime minister Minister on 16 separate occasions. The term "acting Prime Minister" is sometimes also applied to someone who is temporarily appointed Prime Minister following a death in office (more commonly called a "caretaker Prime Minister" or an "interim Prime Minister"). Examples include Frank Forde (seven days following John Curtin's death), Earle Page (19 days following Joseph Lyons' death), and John McEwen (22 days following Harold Holt's disappearance). Unlike those who merely acted in the absence of a Prime Minister, Forde, Lyons, Page and McEwen were officially commissioned by the Governor General and took the oath of office; they are considered Prime