Frontrunners include Chrystia Freeland and Mark Carney, who are making the case they can guide Canada through domestic and international issues. At the top of the list: mounting trade tensions with the United States.

Liberal party members will select a successor to Trudeau, who earlier this year announced his resignation facing deep unpopularity, on March 9.

Marco Rubio said Donald Trump's continued interest in annexing Canada as a state began during a conversation with Justin Trudeau.

Canadians and Republicans alike are confounded as President Donald Trump increasingly links a trade war to his push to annex Canada.

After nearly a decade in power, Justin Trudeau steps down on Friday as prime minister amid a trade war and President Trump’s stated desire to annex Canada.