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.

Though it has some of the world's most significant reserves, Latin America has not emerged as a key player in the rare earth ...

The U.S. president on Tuesday reiterated his claims on Canada’s territory as he increased tariffs, threatening to bring the ...