The former central banker appeared destined to become one of Canada’s shortest-serving prime ministers until Donald Trump picked a fight with the U.S.’s northern neighbor.

Carney, a Harvard-educated technocrat two months into his political career, has capitalized on his image as a steady hand at the tiller in an economic storm.

Mark Carney’s political rise seemed unlikely—until Donald Trump launched an economic attack on Canada. The former central banker, once trailing in the polls, is now leading a Liberal resurgence in a historic election.