Justin Trudeau's party was headed for near-certain defeat. That is until Trump's tariffs came, upending the face of Canadian politics.

Trudeau announced in January he would step down after more than nine years in power as his approval rating plummeted, forcing the ruling Liberal Party to run a quick contest to replace him.

Former Bank of England governor Mark Carney, who was also the head of Canada's central bank, is the front-runner. His time at the Bank of Canada during its rapid recovery from the 2008 financial crisis won him much fame. Since announcing his candidacy in January, he has been endorsed by several cabinet ministers and MPs.

The Liberals are using a ranked ballot and a point system to determine the winner. Every riding (there are now 343 after boundary changes) is worth 100 points, meaning 34,300 points are up for grabs. The candidates are assigned points depending on what percentage of the vote they get in each riding.

Ms. Freeland is vying to become Canada’s next Liberal Party leader and prime minister on Sunday. Her chances could hinge on whether voters consider President Trump’s dislike of her an asset.

Former central banker Mark Carney looks set to become Canada’s next prime minister after the governing Liberals announce a replacement for Justin Trudeau on Sunday