The Conservative Party chipped away at the lead held by Mark Carney’s Liberals in the final days of Canada’s election campaign, though surveys still point to a probable Liberal victory in Monday’s vote.

Canadians will vote for a candidate from one of the political parties in their federal “riding,” or district. Whichever candidate gets the most votes in a riding will become a Member of Parliament (MP) in the House of Commons, and the party with the most MPs wins the election.

Just as polls were opening in Canada, Donald Trump said on social media that Canadians should “vote for the man” who would make their country part of the U.S.