Trump’s Tariff Gamble Faces an Uncertain Supreme Court

Slate’s Jurisprudence explains Trump’s new tariff tactic—invoking Section 338 of the Tariff Act of 1930 to target Canada—as an untested route with potentially broad reach. Previous efforts under IEEPA and Section 301 were blocked or challenged, and the Supreme Court has signaled limits on unilateral tariffs, leaving the fate of this plan uncertain in courts, even as a 50% tariff on Canadian autos is floated for 2027.