President Donald Trump’s long-threatened tariffs on Canada and Mexico went into effect Tuesday, heightening trade tensions and prompting immediate retaliation. The new tariffs impose a 25% tax on imports from both countries,

Trump’s tariffs went into effect at 12:01 a.m. Tuesday, March 4, under the International Emergency Economic Powers Act (IEEPA). A 25% tariff on imports from Canada and Mexico, and an additional 10% tariff on goods from China are now in place.

Canada is imposing 25% tariffs on C$30 billion worth of U.S. imports effective immediately, Prime Minister Justin Trudeau told reporters on Tuesday. Trudeau made the announcement just hours after U.S.