The country's new leader is the only person to have led two major central banks. Those credentials could help in a tariffs standoff with his U.S. counterpart, but central bankers don't have a great record in politics.

Justin Trudeau is out. Mark Carney is in. And his arrival as Canada’s new leader creates an opening for the government in Ottawa to reset its tense relationship with the US and President Donald Trump.

He is a card-carrying member of the global technocratic elite, and he has led not one but two central banks—Britain’s and Canada’s. And he’s a regular at Davos.