TRUMP FOLLOWS THROUGH ON TARIFF THREAT ... SMACKS CHINA, MEXICO & CANADA WITH TARIFFS ... CBS: Trump hits Canada, Mexico and China with steep new tariffs, says Americans could feel "some pain" President Trump on Saturday signed an executive order that imposes 25% tariffs on imports from Canada and Mexico, while adding an additional 10% levy on goods from China. Canada responded hours later with retaliatory tariffs of its own, while Mexico said it was also planning to issue tariffs on the U.S. as well.