The former central bank chief takes over at what he has called “a time of great peril” for Canada, with Trump attacking its sovereignty and economic security.

Mark Carney, a central banker turned politician, steps into his role at a crucial moment as President Trump sets his sights on Canada’s sovereignty and keeps threatening more tariffs.

Mark Carney, an economist and political newcomer, has been sworn in as Canada's new prime minister and delivered a speech vowing to "never" become a part of the United States. He takes office on Friday just days after being elected leader of the governing Liberal Party and amid an ongoing trade war with US President Donald Trump.

Carney, 59, replaces Prime Minister Justin Trudeau, who announced his resignation in January but remained in power until the Liberal Party elected a new leader. Carney is widely expected to trigger a general election in the coming days or weeks.