2015 Canadian federal election topic's main category Category:2015 Canadian federal election
The 2015 Canadian federal election held on October 19, 2015, saw the Liberal Party, led by Justin Trudeau, win 184 seats, allowing it to form a majority government with Trudeau becoming the next prime minister.
The election was held to elect members to the House of Commons of the 42nd Canadian Parliament. In keeping with the maximum four year term under a 2007 amendment to the Canada Elections Act, the writs of election for the 2015 election were issued by Governor General David Johnston on August 4. The ensuing campaign was one of the longest in Canadian history. It was also the first time since the 1979 election that a prime minister attempted to remain in office into a fourth consecutive Parliament and the first time since the 1980 election that someone attempted to win a fourth term of any kind as prime minister.
The Liberal Party, led by Justin Trudeau, won 184 seats, allowing it to form a majority government with Trudeau becoming the next prime minister. Trudeau and the rest of his cabinet were sworn in on November 4, 2015. The Conservative Party, led by incumbent Prime Minister Stephen Harper, won 99 seats, becoming the Official Opposition after nearly a decade on the government benches. The New Democratic Party, led by Tom Mulcair, won 44 seats, becoming the third-largest party in the House of Commons, after having formed the Official Opposition following the 2011 election. The Bloc Québécois won 10 seats, the Green Party won 1 seat, and Strength in Democracy lost all its seats.
The Liberal Party's increase of 148 seats from the previous election was the largest-ever numerical increase by a party in a Canadian election. Prior to the campaign, the Liberals had held only 36 seats—the fewest seats ever held at dissolution by any federal party that won the following election. The Liberals also became the first federal party in Canadian history to win a majority of seats without having been either the governing party or the Official Opposition in the previous parliament, and this was only the second time a party went from having the third-most seats to the most seats (the first being in 1925). It was the second largest number of seats won in a federal election for the Liberals, the best being 191 in 1949. The election also had the highest voter turnout since 1993. Every party represented in the House of Commons except the Liberal Party recorded a decrease in its popular vote share.
Following the election, Harper conceded defeat to Trudeau and resigned as leader of the Conservative Party. Gilles Duceppe resigned as leader of the Bloc Québécois shortly after the election on October 22, 2015. Tom Mulcair announced his intention to remain leader of the NDP, but was forced to step down in October 2017, after losing a party vote on his leadership in the spring of 2016.