Security uses binoculars on a roof as Canada's Liberal Prime Minister Justin Trudeau holds an election campaign stop in Windsor, Ontario Canada September 17, 2021. REUTERS/Carlos Osorio TPX IMAGES OF THE DAY 

Canada's opposition Conservative party leader Erin O'Toole, accompanied by his wife Rebecca, visits the Bellameres Winery during his election campaign tour in London, Ontario, Canada September 17, 2021. REUTERS/Blair Gable 

New Democratic Party (NDP) leader Jagmeet Singh makes an election campaign visit in Kitchener, Ontario, Canada September 14, 2021. REUTERS/Nick Iwanyshyn 

People's Party of Canada (PPC) leader Maxime Bernier gives a thumbs up during a protest rally outside the Canadian Broadcasting Corporation (CBC) headquarters in Toronto, Ontario, Canada September 16, 2021. REUTERS/Chris Helgren 

A protestor argues with police after Canada's Liberal Prime Minister Justin Trudeau held an election campaign stop in Windsor, Ontario Canada September 17, 2021. REUTERS/Carlos Osorio 

Canada's opposition Conservative party leader Erin O'Toole speaks to Former Canadian Prime Minister Brian Mulroney during Erin's election campaign tour in Orford, Quebec, Canada September 15, 2021. REUTERS/Mathieu Belanger TPX IMAGES OF THE DAY 

Canada's Liberal Prime Minister Justin Trudeau arrives for an election campaign stop in Windsor, Ontario Canada September 17, 2021. REUTERS/Carlos Osorio 

Supporters of the right-wing People's Party of Canada (PPC) attend a protest rally outside the Canadian Broadcasting Corporation (CBC) headquarters in Toronto, Ontario, Canada September 16, 2021. REUTERS/Chris Helgren 

A supporter of the right-wing People's Party of Canada (PPC) films Maxime Bernier (not seen) speaking during a protest rally outside the Canadian Broadcasting Corporation (CBC) headquarters in Toronto, Ontario, Canada September 16, 2021. REUTERS/Chris Helgren 

Canada's opposition Conservative Party leader Erin O'Toole visits supporters during his election campaign tour at a farmers market in Truro, Nova Scotia, Canada September 16, 2021. REUTERS/Ingrid Bulmer 

Canada's New Democratic Party (NDP) leader Jagmeet Singh bumps elbows with a girl during an election campaign visit in Toronto, Ontario, Canada September 16, 2021. REUTERS/Nick Lachance 

A man plays an Elvis Presley song for Canada's Liberal Prime Minister Justin Trudeau during an election campaign stop in Trois-Rivieres, Quebec, Canada September 16, 2021. REUTERS/Carlos Osorio 

NDP supporter Sophie Reynolds wears a "Tax the rich" mask during an election campaign visit by New Democratic Party (NDP) leader Jagmeet Singh in Welland, Ontario, Canada September 15, 2021. REUTERS/Nick Iwanyshyn TPX IMAGES OF THE DAY 

Canada's opposition Conservative party leader Erin O'Toole visits the riding of Charlottetown, Prince Edward Island, Canada, August 28, 2021. REUTERS/John Morris TPX IMAGES OF THE DAY 

Canada's Liberal Prime Minister Justin Trudeau boards his bus after an election campaign stop in Richmond, British Columbia Canada September 14, 2021. REUTERS/Carlos Osorio TPX IMAGES OF THE DAY 

New Democratic Party (NDP) leader Jagmeet Singh votes in Burnaby British Columbia, Canada September 10, 2021. REUTERS/Jennifer Gauthier 

A bee flies near Canada's Liberal Prime Minister Justin Trudeau during an election campaign stop in Montreal, Quebec, Canada September 16, 2021. REUTERS/Carlos Osorio TPX IMAGES OF THE DAY 

Canada's Liberal Prime Minister Justin Trudeau on board his campaign plane with his Chief of Staff, Katie Telford, after a campaign stop in Brampton, Ontario, Canada, September 14, 2021. REUTERS/Carlos Osorio 

Former Liberal Prime Minister Jean Chretien addresses the audience before Canada's Liberal Prime Minister Justin Trudeau speaks at an election campaign stop in Brampton, Ontario, Canada, September 14, 2021. REUTERS/Carlos Osorio 

Canada's opposition Conservative party leader Erin O'Toole continues his election campaign tour in Russell, Ontario, Canada September 14, 2021. REUTERS/Blair Gable 

Canada's Liberal Prime Minister Justin Trudeau gives a thumbs up while boarding his bus after speaking at an election campaign stop in Brampton, Ontario, Canada, September 14, 2021. REUTERS/Carlos Osorio 

NDP supporter holds up a picture of New Democratic Party (NDP) leader Jagmeet Singh during an election campaign visit in Welland, Ontario, Canada September 15, 2021. REUTERS/Nick Iwanyshyn 

Canada's Prime Minister Justin Trudeau gestures to his staff after an election campaign stop in Richmond, British Columbia Canada September 14, 2021. REUTERS/Carlos Osorio 

A protester talks to police officers after heckling Canada's Liberal Prime Minister Justin Trudeau as he takes part in an interview with Global reporter Neetu Garcha in Burnaby, British Columbia, Canada September 13, 2021. Sean Kilpatrick/Pool via REUTERS 

Canada's opposition Conservative party leader Erin O'Toole continues his election campaign tour in Carp, Ontario, Canada September 13, 2021. REUTERS/Blair Gable 

Canada's Prime Minister Justin Trudeau plays a game with children while visiting Soccer World during his election campaign tour in Hamilton, Ontario, Canada Friday September 10, 2021. REUTERS/Carlos Osorio TPX IMAGES OF THE DAY 

A sign outside of an advance polling station in Burnaby British Columbia, Canada September 10, 2021. REUTERS/Jennifer Gauthier 

Canada's Liberal Prime Minister Justin Trudeau gestures during an election campaign stop in Trois-Rivieres, Quebec Canada September 16, 2021. REUTERS/Carlos Osorio 

Canada's Liberal Prime Minister Justin Trudeau speaks at an election campaign stop in Brampton, Ontario, Canada, September 14, 2021. REUTERS/Carlos Osorio 

New Democratic Party (NDP) leader Jagmeet Singh chats with supporters outside of a polling station after casting his ballot during his election campaign tour in Burnaby British Columbia, Canada September 10, 2021. REUTERS/Jennifer Gauthier 

Canada's Prime Minister Justin Trudeau visits Paramount Fine Foods during his election campaign tour in Toronto, Ontario, Canada Friday September 10, 2021. REUTERS/Carlos Osorio 

Liberal Leader Justin Trudeau, left to right, NDP Leader Jagmeet Singh, and Conservative Leader Erin O'Toole take part in the federal election English-language Leaders debate in Gatineau, Canada, September 9, 2021. Adrian Wyld/Pool via REUTERS 

Green Party Leader Annamie Paul takes part in the federal election English-language Leaders debate in Gatineau, Canada, September 9, 2021. Justin Tang/Pool via REUTERS 

NDP Leader Jagmeet Singh, left, and Conservative Leader Erin O'Toole take part in the federal election English-language Leaders debate in Gatineau, Quebec, Canada, September 9, 2021. Justin Tang/Pool via REUTERS 

People's Party of Canada (PPC) supporters protest after leader Maxime Bernier was not invited to the two federal election debates held at the Canadian Museum of History in Gatineau, Quebec, September 9, 2021. REUTERS/Patrick Doyle 

A man holds an upside-down Canadian flag in a protest against vaccination, during Canada's Liberal Prime Minister Justin Trudeau's election campaign tour stop in Brantford, Ontario, Canada September 6, 2021. REUTERS/Carlos Osorio 

Canada's Liberal Prime Minister Justin Trudeau holds Hadrien Trudeau's hand at an election campaign stop in Vancouver, British Columbia Canada September 13, 2021. REUTERS/Carlos Osorio 

Canada's Liberal Prime Minister Justin Trudeau makes an announcement during his election campaign tour, in Markham, Ontario, Canada, September 5, 2021. REUTERS/Carlos Osorio 

New Democratic Party (NDP) leader Jagmeet Singh serves poutine during an election campaign stop ahead of the TVA debate, at a park in Montreal, Quebec, Canada September 2, 2021. REUTERS/Christinne Muschi 

Canada's opposition Conservative party leader Erin O'Toole holds the O'Toole special flavour of the day ice-cream, named after him, while standing next to his wife Rebecca O'Toole during a visit to the riding of Charlottetown, Prince Edward Island, Canada, August 28, 2021. REUTERS/John Morris 

Canada's Liberal Prime Minister Justin Trudeau walks with elder Martha Tikivik, who introduced Trudeau during his election campaign visit to Iqaluit, Nunavut, Canada August 30, 2021. REUTERS/Casey Lessard 

Canada's New Democratic Party leader Jagmeet Singh meets with supporters during his election campaign tour at Transfer Beach Park in Ladysmith, British Columbia, Canada, August 30, 2021. REUTERS/Kevin Light TPX IMAGES OF THE DAY 

A protestor reacts as Canada's Liberal Prime Minister Justin Trudeau arrives at his election campaign tour in Nobleton, Ontario, Canada August 27, 2021. REUTERS/Carlos Osorio TPX IMAGES OF THE DAY REFILE - CORRECTING CITY 

A man walks past the media bus and the empty stage following the cancellation of an event during the campaign of Canada's Liberal Prime Minister Justin Trudeau, in Bolton, Ontario, Canada August 27, 2021. REUTERS/Carlos Osorio 

Canada's Liberal Prime Minister Justin Trudeau walks with families along the Fraser River in Richmond, British Columbia Canada September 14, 2021. REUTERS/Carlos Osorio 

A supporter of Canada's New Democratic Party takes a selfie outside leader Jagmeet Singh's bus prior to an election campaign tour stop at Transfer Beach Park in Ladysmith, British Columbia, Canada, August 30, 2021. REUTERS/Kevin Light 

A horse is seen in the background as Leader of the Conservative Party of Canada, Erin O'Toole takes questions at the Liberty For Youth's 7Rs Ranch during his election campaign tour in Brantford, Ontario, Canada August 25, 2021. REUTERS/Carlos Osorio 

New Democratic Party (NDP) leader Jagmeet Singh holds the feet of a friend's baby as he continues his election campaign tour in Toronto, Ontario, Canada August 21, 2021. REUTERS/Chris Helgren 

Canada's Prime Minister Justin Trudeau speaks during a virtual town hall with Liberal candidates after announcing a federal election, in Ottawa, Ontario, Canada, August 15, 2021. REUTERS/Patrick Doyle