Frontrunners include Chrystia Freeland and Mark Carney, who are making the case they can guide Canada through domestic and international issues. At the top of the list: mounting trade tensions with the United States.

TORONTO (AP) — Former central banker Mark Carney will become Canada’s next prime minister after the governing Liberal Party elected him its leader Sunday as the country deals with U.S. President Donald Trump’s trade war and annexation threat, and a federal election looms.

Mark J. Carney ’87 defeated fellow Harvard College alum Chrystia A. Freeland ’90 and two other Liberal Party candidates to become the 24th Prime Minister of Canada and the new leader of the Canadian Liberal Party on Sunday afternoon.