Trump Invokes Never-Used 1930 Trade Provision to Hit Canada With 50% Tariffs

Trump imposed 50% tariffs on $20 billion in Canadian goods via Section 338 of the Trade Act of 1930 — its first known invocation. The three proclamations target dairy, autos, and alcohol, taking effect in August 2026. With no prior use, there is no legal precedent or established pathway for Canada to challenge the action under existing trade agreements.