The 2004 Conservative Party of Canada leadership election took place on March 20, 2004, in Toronto, Ontario, and resulted in the election of Stephen Harper as the first leader of the new Conservative Party of Canada. The Conservative Party was formed by the merger of the Canadian Alliance and the Progressive Conservative Party of Canada, in December 2003.
Cheryl Gallant is a Canadian politician who represents the riding of Renfrew—Nipissing—Pembroke in the House of Commons of Canada. She is a member of the Conservative Party of Canada. Along with fellow MP Scott Reid, they are the longest-serving current Conservative MPs, and the last two MPs still serving who were members of Canadian Alliance.
Ian Gardiner Waddell was a Canadian politician, author and filmmaker. He served in the House of Commons of Canada from 1979 to 1993, and in the Legislative Assembly of British Columbia from 1996 to 2001.
Susan R. Kadis is a former politician in Ontario, Canada. She was the Liberal Member of Parliament for Thornhill in the House of Commons of Canada from 2004-08.
Sharon Ruth Hayes is a former Canadian politician. She served as the member of Parliament for the riding of Port Moody—Coquitlam from 1993 to 1997 as a member of the Reform Party of Canada.
Lois E. Brown is a Canadian businesswoman and politician. She served as the Conservative Member of Parliament (MP) for Newmarket—Aurora from 2008 to 2015.
Fin Donnelly is a Canadian politician. He has served as the member of the Legislative Assembly (MLA) of British Columbia for the electoral district of Coquitlam-Burke Mountain since 2020, as part of the British Columbia New Democratic Party caucus. He previously served as member of Parliament (MP) as part of the federal NDP caucus, representing New Westminster—Coquitlam from 2009 to 2015, and Port Moody—Coquitlam from 2015 to 2019.
Costas Menegakis is a businessman, an entrepreneur and a former Canadian politician, who represented the federal electoral district of Richmond Hill from 2011 to 2015.
Ruby Sahota is a Canadian Liberal politician who was elected as a Member of Parliament in the House of Commons of Canada to represent the federal riding Brampton North during the 2015 Canadian federal election.
Leona Alleslev-Krofchak is a Canadian politician and former military officer who served as the member of Parliament (MP) for Aurora—Oak Ridges—Richmond Hill. She was elected as a Liberal in the 2015 federal election, and crossed the floor to join the Conservative Party in 2018, citing disagreements with the Liberal government over their handling of economic and foreign affairs. On October 21, 2019, she was re-elected as a Conservative. Alleslev was defeated in the 2021 federal election.
By-elections to the 42nd Canadian Parliament were held to fill vacancies in the House of Commons of Canada between the 2015 and the 2019 federal elections. The 42nd Canadian Parliament existed from 2015 to 2019 with the membership of its House of Commons having been determined by the results of the Canadian federal election held on October 19, 2015. The Liberal Party of Canada had a majority government during this Parliament.
Leslyn Lewis is a Canadian lawyer and politician who has served as the member of Parliament (MP) for Haldimand—Norfolk since 2021. A member of the Conservative Party, Lewis contested the party leadership in the 2020 leadership election, placing third. She was the first visible minority woman to run for the federal Conservative Party leadership. She is known for her socially conservative views.
The 2022 Conservative Party of Canada leadership election was a leadership election held by the Conservative Party of Canada to elect the successor to Erin O'Toole. He was removed on February 2, 2022, as leader by the party's caucus in the House of Commons of Canada by a vote of 73–45. Candice Bergen was chosen as interim party leader and served until a permanent leader was elected.
By-elections to the 43rd Canadian Parliament were held to fill vacancies in the House of Commons of Canada between the 2019 federal election and the 2021 federal election. The 43rd Canadian Parliament has existed since 2019 with the membership of its House of Commons having been determined by the results of the Canadian federal election held on October 21, 2019. The Liberal Party of Canada had a minority government during this Parliament.
A by-election was held in the federal riding of York Centre in Ontario on October 26, 2020 following the resignation of incumbent Liberal MP Michael Levitt after 5 years in Parliament. The seat was held for the Liberals by businesswoman Ya'ara Saks, albeit on a much reduced majority. People's Party of Canada leader Maxime Bernier ran in this election to attempt to gain his party's first seat in Parliament, to little success, winning just several hundred votes.
Melissa LantsmanMP is a Canadian politician and public relations executive who serves as the member of Parliament (MP) for Thornhill since 2021. A member of the Conservative Party, she is the party's co-deputy leader and the co-deputy leader of the Official Opposition, serving with Tim Uppal. Lantsman is the first openly gay and first Jewish woman ever elected as a Conservative MP. Upon Pierre Poilievre's election as Conservative Leader, he named Lantsman one of two deputy leaders along with Uppal.
Bonita M. Zarrillo is a Canadian politician and is the Member of Parliament for Port Moody—Coquitlam elected in the 2021 Canadian federal election. She had previously narrowly lost the riding in 2019 to the Conservative Party's Nelly Shin. Zarrillo is a member of the New Democratic Party. Prior to her election to the House of Commons, she served as a city councillor for Coquitlam City Council.
Leah Taylor Roy is a Canadian politician who was elected to the riding of Aurora—Oak Ridges—Richmond Hill as a member of the Liberal Party in the 2021 Canadian federal election. She defeated incumbent Leona Alleslev.
By-elections to the 44th Canadian Parliament may be held to fill vacancies in the House of Commons of Canada between the 2021 federal election and the 45th federal election. The 44th Canadian Parliament has existed since 2021 with the membership of its House of Commons having been determined by the results of the 44th Canadian federal election held on September 20, 2021. The Liberal Party of Canada has a minority government during this Parliament, supported by the New Democratic Party in a confidence-and-supply agreement. The Conservative Party of Canada forms the Official Opposition.
