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

Ontario Premier Doug Ford has blasted United States President Donald Trump’s tariff threats to Canada On March 4, tariffs ...

Under Trump's flip-flopping raft of tariffs, Washington placed a 10 percent tariff on Canadian energy, the major supplier to U.S. states hugging the northern border. Ford has pledged retaliatory 25 ...