2015 Canadian federal election in the context of "1979 Canadian federal election"

Justin Pierre James Trudeau (born December 25, 1971) is a Canadian politician who served as the 23rd prime minister of Canada from 2015 to 2025. He led the Liberal Party from 2013 until his resignation in 2025 and was the member of Parliament (MP) for Papineau from 2008 until 2025.

Trudeau was born in Ottawa, Ontario, during the first premiership of his father, Pierre Trudeau. He attended Collège Jean-de-Brébeuf and holds a Bachelor of Arts degree in English from McGill University and a Bachelor of Education degree from the University of British Columbia. He then taught at the secondary school level in Vancouver before returning to Montreal in 2002 to further his studies. He served as chair for the youth charity Katimavik and as director of the not-for-profit Canadian Avalanche Association. In 2006, he was appointed as chair of the Liberal Party's Task Force on Youth Renewal. Trudeau was elected to represent the riding of Papineau in the House of Commons in the 2008 federal election. He became the Liberal Party's Official Opposition critic for youth and multiculturalism in 2009 and critic for citizenship and immigration in 2010. In 2011, he was appointed as a critic for secondary education and sport. In 2013, Trudeau was elected as the leader of the Liberal Party. He led the party to a majority government in the 2015 federal election, bringing the party from a third place finish in the previous election with the largest-ever numerical increase of seats by any party in a Canadian election. He became the second-youngest prime minister in Canadian history and the first to be the child of a previous prime minister.

The 2025 Canadian federal election was held on April 28 to elect members of the House of Commons to the 45th Canadian Parliament. Governor General Mary Simon issued the writs of election on March 23, 2025, after Prime Minister Mark Carney advised her to dissolve Parliament. This was the first election to use a new 343-seat electoral map based on the 2021 census. Key issues of the election campaign included the cost of living, housing, crime, and newly imposed tariffs and threats of annexation from Donald Trump, the president of the United States.

The Liberal Party won a fourth term, emerging with a minority government for a third consecutive election; it also marked the first time they won the popular vote since 2015, doing so with the highest vote share for any party in a federal election since 1984, and their own highest vote share since 1980. The party's victory came after a substantial rebound in the polls, noted as being "one of the widest on record in any democracy". The election also saw the highest turnout since 1993, with 69.5% of Canada's 28 million eligible voters casting a ballot.

Mélanie Joly (French pronunciation: [melani ʒɔli]; born January 16, 1979) is a Canadian politician and lawyer who has been serving as the Minister of Industry, Registrar General of Canada, and Minister responsible for Canada Economic Development for Quebec Regions since May 2025. A member of the Liberal Party, Joly represents the Montreal-area riding of Ahuntsic-Cartierville in the House of Commons, taking office as a member of Parliament (MP) following the 2015 federal election. She has held a number of portfolios including Canadian heritage, tourism, foreign affairs, and La Francophonie. Joly ran for mayor of Montreal in the 2013 Montreal municipal election, placing second behind eventual winner Denis Coderre.

Born in Montreal, Quebec, Joly graduated from Université de Montréal and Brasenose College, Oxford.

Papineau (French pronunciation: [papino]; formerly Papineau—Saint-Denis and Papineau—Saint-Michel) is a federal electoral district (riding) in Montreal, Quebec, Canada, that has been represented in the House of Commons since 1948. Its population in 2016 was 110,750. Justin Trudeau, the former Prime Minister of Canada and former leader of the Liberal Party, represented the riding from the 2008 federal election until he resigned in 2025. Trudeau became Liberal leader in a 2013 leadership election, succeeding Bob Rae, and prime minister when the Liberals returned to government in the 2015 Canadian federal election, succeeding Conservative leader Stephen Harper.

The name of the riding comes from a street in the Villeray neighbourhood, named after Joseph Papineau.

In 2013, the Liberal Party of Canada held a leadership election to elect a new party leader. The election was triggered by Michael Ignatieff's announcement, on May 3, 2011, of his intention to resign as leader following the party's defeat in the 2011 federal election. On May 25, 2011, Bob Rae was appointed by Liberal caucus as interim leader. The party announced Justin Trudeau as its new leader on April 14, 2013, in Ottawa, Ontario.

Justin Trudeau would go on to become the 23rd prime minister of Canada in the 2015 Canadian federal election in which the Liberal Party won 184 seats, an increase of 150 seats from 34 seats in the 2011 election, the largest-ever numerical increase by a party in a Canadian election.

Trudeaumania was the term used during 1968 to describe the excitement generated by Pierre Elliott Trudeau's entry into the April 1968 Liberal Party of Canada leadership election. Trudeau won the leadership election and was sworn in as prime minister. Trudeaumania continued during the subsequent federal election (in which the Liberals won a strong majority government) and during Trudeau's early years as prime minister. Decades later, Trudeau's son, Justin Trudeau, drew a similar international reaction when he became prime minister in 2015.