Front-runner Mark Carney and underdog Chrystia Freeland, both established, centrist policymakers, are vying to succeed Justin Trudeau amid grave threats to Canada from the United States.

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,

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.