Pierre Poilievre, leader of Canada’s Conservative Party, told President Trump to “stay out of our election” on Monday, as voters headed to the polls to determine the future of Canadian governance.

Prime Minister Mark Carney called for early elections after taking over from Justin Trudeau. The polling is currently underway and results will start pouring in on April 29.

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.