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 day, Trudeau apologized, saying he was wrong to use "Alberta" as "shorthand" in referring to Stephen Harper's government. The Conservatives held onto Calgary Centre in the by-election by less than 1,200 votes. Liberal candidate Harvey Locke said he lost the by-election on his own and that comments made by Trudeau did not influence the outcome. Fellow leadership candidate Marc Garneau, seen as Trudeau's main challenger in the race, criticized Trudeau for not releasing enough substantial policy positions. Garneau called on him to release more detailed policies before members and supporters begin to vote. Garneau later challenged Trudeau to a one-on-one