Why it matters: Liberal Party members' vote for Mark Carney, former governor of the Banks of Canada and England, comes as the Liberal Party is experiencing a polling boost amid widespread opposition to President Trump's policies targeting its northern neighbor.

Carney, 59, a political novice, will take over at a tumultuous time in Canada, which is in the midst of a trade war with the United States.

Carney cast himself during the campaign as an even-keeled political outsider with the economic bona fides to take on Trump and manage a trade war.