The president said he will impose tariffs Feb. 1 on products from Canada, Mexico and China, countries that together account for more than a third of U.S. trade. Protectionism (Trade), International Trade and World Market, Customs (Tariff), Politics and Government, United States Politics and Government, Supply Chain, Fentanyl, Canada, China, Mexico The president said he will impose tariffs Feb. 1 on products from Canada, Mexico and China, countries that together account for more than a third of U.S. trade. NYT > Business