Ontario implemented a 25 percent tariff on all electricity exports to the U.S. on Monday, impacting three states.

Canadians and Republicans alike are confounded as President Donald Trump increasingly links a trade war to his push to annex America's northern neighbor.

As the trade conflict intensifies, attention has turned to Canada's vast reserves of critical minerals and rare earth ...

Ontario Premier Doug Ford has threatened to disrupt the approximately $95 billion energy trade due to Trump's new tariffs.