Mark Carney, soon to become Canada's new prime minister, is a two-time central banker and crisis fighter about to face his biggest challenge of all: steering Canada through Donald Trump's tariffs. The Liberals announced Carney as Justin Trudeau's successor on Sunday after party members voted in a nominating contest.

Justin Trudeau, who was first elected prime minister in November 2015, announced on Jan. 6 his intention to resign as Liberal Party leader and prime minister.