Premiership of Justin Trudeau with Canada, a change of government isn’t going to lead to the contract being ripped up." Premiership of Justin Trudeau The premiership of Justin Trudeau began on November 4, 2015, when the first Cabinet headed by Justin Trudeau was sworn in by Governor General David Johnston. Trudeau was invited to form the 29th Canadian Ministry and become Prime Minister of Canada following the 2015 election, where Trudeau's Liberal Party won a majority of the seats in the House of Commons of Canada, leading to the resignation of Conservative Prime Minister Stephen Harper. Trudeau has promised to decentralize power from the
Justin Trudeau debate, and said that if Trudeau could not defend his ideas in a debate against him, he wouldn't be able to do so against Prime Minister Harper. Trudeau clashed in debates with challenger Joyce Murray, who was the only Liberal leadership candidate to speak out strongly in favour of electing the House of Commons with a system of proportional representation. She challenged Trudeau over his support for a preferential ballot voting system. On March 13, 2013, Garneau dropped out of the leadership race, saying that polling conducted by his campaign showed he would be unable to defeat Trudeau. With Joyce