Trump previously said he would increase from 25% to 50% tariffs for Canada after Ontario said it would raise electricity prices on U.S.

Trump said he would double his planned tariffs on steel and aluminum for Canada, prompting Ontario to back down on its ...

Canada's incoming prime minister Mark Carney, who was chosen by the Liberal Party to replace Justin Trudeau, has vowed to win ...

Donald Trump has warned that the US will respond after Ontario's premier announced a sizable tax increase on electricity ...

Yahoo Finance will chronicle the latest news and updates on Trump's tariffs — from the threats to the eventual policy.