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.

Canada's Liberal Party will announce Prime Minister Justin Trudeau's successor on Sunday as both party chief and head of the country's government in the midst of a trade war with the United States that could cripple the Canadian economy.

By the end of the night, the Liberal Party of Canada will have a new leader, and the country will know who will soon become the next prime minister.