2020 Conservative Party of Canada leadership election
July – 21 August 2020
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| Turnout | 65.01% | ||||||||||||||||||||||||||||||||||
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| Date | August 23, 2020 |
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| Convention | Shaw Centre, Ottawa |
| Resigning leader | Andrew Scheer |
| Won by | Erin O'Toole |
| Ballots | 175,192 |
| Candidates | 4 |
| Entrance fee | $300,000 (of which $100,000 is a refundable compliance deposit) |
In 2020, the Conservative Party of Canada held a leadership election held to elect a new party leader. The election was prompted by Andrew Scheer's announcement in December 2019 that he would resign as party leader. The election was conducted by postal ballot from mid-July to August 21, 2020, with the ballots processed and results announced on August 23–24, 2020. The $300,000 entrance fee made it the most expensive leadership race in the history of Canadian politics, at that time.
Four candidates were running for the position: member of parliament and former veterans affairs minister Erin O'Toole, co-founder of the Conservative Party Peter MacKay, Toronto lawyer Leslyn Lewis and member of parliament Derek Sloan.
The election was originally scheduled for June 27, 2020, but on March 26, the party suspended the race due to the COVID-19 pandemic in Canada. On April 29, it was announced that the race would proceed by postal ballot with the election itself being rescheduled from June to August. MacKay led the first ballot with 33.52 per cent by a narrow margin of around 2 per cent. O'Toole subsequently led on the second ballot and won on the third ballot, becoming the new leader of the Conservative Party.