TORONTO -- Mark Carney's political career is only months old, and it's already been a roller-coaster ride. The former central banker appeared destined to become one of Canada's shortest-serving prime ministers until President Donald Trump picked a fight with the U.S.'s northern neighbor.

Carney takes aim at Conservative Leader Pierre Poilievre and U.S. President Donald Trump during “the most important election of our lives.”

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.