Canada's opposition Conservative party leader Erin O'Toole interacts with Grace, a golden retriever, next to his wife Rebecca at a rally during his election campaign tour, in Waterdown, Ontario, Canada September 18, 2021.

Canada's Liberal Prime Minister Justin Trudeau jumps down from a truck after speaking during an election campaign stop in Hamilton, Ontario, Canada September 17, 2021.

Canada's opposition Conservative party leader Erin O'Toole elbow-bumps with a kid during a stop at a constituency office during his election campaign tour in Brantford, Ontario, Canada September 17, 2021.

Canada's Liberal Prime Minister Justin Trudeau during an election campaign stop in Peterborough, Ontario, Canada September 18, 2021.

Canada's Liberal Prime Minister Justin Trudeau speaks at an election campaign stop on the last campaign day before the election, in Montreal, Quebec, Canada September 19, 2021.

Canada's Liberal Prime Minister Justin Trudeau speaks during an election campaign stop in Peterborough, Ontario, Canada September 18, 2021.

Canada's opposition Conservative party leader Erin O'Toole elbow-bumps his wife Rebecca on stage during his election campaign tour in St. Catharines, Ontario, Canada September 17, 2021.

Canada's opposition Conservative Party leader Erin O'Toole speaks during his election campaign tour in Kitchener, Ontario, Canada September 18, 2021.

Canada's opposition Conservative Party leader Erin O'Toole speaks during campaign stop at a constituency office in Markham, Ontario, Canada September 19, 2021.

New Democratic Party (NDP) leader Jagmeet Singh meets with supporters during his election campaign tour in Vancouver, British Columbia, Canada September 19, 2021.

Canada's New Democratic Party (NDP) leader Jagmeet Singh greets supporters during an election campaign tour in Halifax, Nova Scotia, Canada September 17, 2021.

Canada's Liberal Prime Minister Justin Trudeau speaks during an election campaign stop in Aurora, Ontario, Canada September 18, 2021.

Canada's Liberal Prime Minister Justin Trudeau gestures during an election campaign stop in Kitchener, Ontario Canada September 17, 2021.

Canada's Liberal Prime Minister Justin Trudeau gestures during an election campaign stop in Kitchener, Ontario Canada September 17, 2021.

Canada's Liberal Prime Minister Justin Trudeau watches a lion dance during an election campaign stop in Richmond Hill, Ontario, Canada September 17, 2021.

Canada's New Democratic Party (NDP) leader Jagmeet Singh takes a selfie with supporters during his election campaign tour in Halifax, Nova Scotia, Canada September 17, 2021.

Canada's Liberal Prime Minister Justin Trudeau speaks at an election campaign stop on the last campaign day before the election, in Vaughan, Ontario, Canada September 19, 2021.

Canada's Liberal Prime Minister Justin Trudeau visits a lawn bowling club during an election campaign stop in Richmond Hill, Ontario Canada September 18, 2021.

Canada’s New Democratic Party (NDP) leader Jagmeet Singh meets with healthcare workers near the East Edmonton Health Centre, in Edmonton, Alberta, Canada, September 18, 2021.

Canada's Liberal Prime Minister Justin Trudeau boards his plane on the last campaign day before the election, in Hamilton, Ontario, Canada September 19, 2021.