The new prime minister is facing an escalating trade war with the US as well as calls for Canada to become the 51st state.

In his first remarks as prime minister of Canada on Friday, Mark Carney categorically shot down the notion that the U.S. would annex Canada as its 51st state. Why it matters: Carney enters the role during a politically and economically volatile time for Canada,

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.