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.
Parliamentary Private Secretary to the Prime Minister Many Prime Ministers have used this tactic during their premierships; former Prime Minister, David Cameron, only employed one Parliamentary Private Secretary at a time during his tenure in office, but he appointed John Henry Hayes as a minister without portfolio with responsibility for the Parliamentary Conservative Party, a job typically reserved for the Parliamentary Private Secretary. The final instalment of Michael Dobbs's and the BBC's "House of Cards" trilogy, "The Final Cut", includes a character, Claire Carlsen, who serves as Prime Minister Francis Urquhart's Parliamentary Private Secretary, ultimately betraying him by attempting to leak documents about his service in the