President Donald Trump on Monday imposed a 25% tariff on all steel and aluminum imports into the United States with no exceptions or exemptions.

President Donald Trump says he'll announce on Monday that the United States will impose 25% tariffs on all steel and aluminum imports, including from Canada and Mexico, as well as other import duties later in the week.

U.S. President Donald Trump followed through on recent threats Monday evening and signed an order to impose 25 per cent tariffs on all steel and aluminum imports — including from Canada.