Deputy Prime Minister of Canada of service of Allan J. MacEachen. Before then, Trudeau had given the title of "Senior Minister" to a member of his cabinet. The last to occupy that position was Paul Hellyer. Joe Clark's government did not have a deputy prime minister. Similarly, Prime Minister Stephen Harper did not designate a deputy prime minister, meaning Canada's most recent deputy prime minister was Anne McLellan, who in 2006, was also the first deputy prime minister to lose her seat in the House of Commons. Harper gave special status in the line of authority to members of his cabinet: under an order-in-council issued
Prime minister leader, the incoming leader will usually be referred as "prime minister-in-waiting". An example or this situation was in 2016 in the United Kingdom when Theresa May was elected leader of the Conservative Party while David Cameron was still prime minister. Ukraine's constitution (1996) lists the powers, functions and duties of the Prime Minister of Ukraine. Most prime ministers in parliamentary systems are not appointed for a specific term in office and in effect may remain in power through a number of elections and parliaments. For example, Margaret Thatcher was only ever appointed prime minister on "one" occasion, in 1979. She