U.S. President Donald Trump, who has imposed tariffs on Canadian goods and threatened to make Canada the 51st state, has loomed large over the contest.

Carney, who will take over the leadership of both his party and his country, is expected to call a snap election shortly after being sworn into office.

Carney is due to name a cabinet that will likely not be in office for long, since Liberal insiders say he will call a snap election in the coming days. If he changes his mind, opp

OTTAWA—Mark Carney took over Friday as Canada’s prime minister, planting a former central banker known for navigating crises in the middle of a trade war with President Trump and likely kicking off a national election.

Mark Carney, a central banker turned politician, steps into his role at a crucial moment as President Trump sets his sights on Canada’s sovereignty and keeps threatening more tariffs.