Conservatives once had a 25-point lead ahead of Canada's next election. That lead has since vanished. Experts say Trump's actions may changed the course of the election.

Voters will decide today whether to grant interim Prime Minister Mark Carney a full four-year mandate or give the Conservative Party a turn at the wheel after over nine years of Liberal Party government.

The US president came to dominate on the campaign trail, with the contest being viewed as a referendum on how Canada should engage with him.