Trump just invoked a 1930 tariff law no president has ever used — against Canada

President Donald Trump invoked Section 338 of the Smoot-Hawley Tariff Act to impose retaliatory tariffs on Canada, citing discriminatory 25% tariffs on U.S. autos. The administration claims Canadian tariffs disadvantage U.S. commerce, but evidence is weak as trade data shows fluctuating, not declining, U.S. auto exports to Canada.