It used to sound like a joke when President Donald Trump talked about making Canada the 51st US state, but to Canadian leaders it sounds like an increasingly serious threat and part of a plan.

Here are the key announcements and actions Trump has taken since he returned to the White House and launched his trade war with Canada, and how we got here.

Canada’s next leader is a relative political newcomer, coming instead from a decades-long career in finance where he steered governments through major global crises and periods of upheaval – ...

During the US civil war (1861-1865) there was talk of forceable American annexation of Canada because of British support for ...

Mark Carney, a former central banker, won his Liberal Party’s election in a landslide Sunday and will replace Justin Trudeau as prime minister of Canada. He will be sworn into office in the ...

Mark Carney has helped run two Group of Seven economies in crisis and now will try to steer Canada through a looming trade war, annexation threats and an expected election.

Mark Carney, a former central banker, now heads the Liberal Party and will soon lead Canada, tasked with responding to President Trump’s threats.

Canada's Prime Minister Justin Trudeau grew emotional during a speech following his announcement he's stepping down from the ...

Prime Minister Justin Trudeau's government has signed agreements totalling almost $37 billion over five years with 11 ...

He says Nunavut doesn't export to the U.S. but relies heavily on imports for essential goods and infrastructure. Akeeagok ...