The leader of Ontario, Canada’s most populous province, on Wednesday triggered a snap election, saying he needs a strong four-year mandate to fight the tariffs threatened by U.S. President Donald Trump.

Ontario voters are set to head to the polls in a rare winter election. Premier Doug Ford has already been framing the snap election, coming right before an anticipated federal vote, as necessary for a strong mandate in order to best represent Ontario’s interests on the national and world stage.