The Liberal Party of Canada is set to announce Canadian Prime Minister Justin Trudeau’s successor on Monday, marking a crucial transition as the country faces a trade dispute with the United States. The new leader will have to navigate negotiations with U.

Prime Minister Justin Trudeau of Canada warned that the Trump administration’s tariffs were leading to a trade war. Mexico’s leader vowed to impose countermeasures on Sunday.

Carney, 59, a political novice, will take over at a tumultuous time in Canada, which is in the midst of a trade war with the United States.