Supreme Court Voids Trump Emergency Tariffs; President Signs New 10% Global Import Duty

The Supreme Court ruled on February 20 that President Donald Trump's sweeping emergency tariffs — imposed under the International Emergency Economic Powers Act (IEEPA) — exceeded the statutory authority Congress granted under that law. The 6-3 decision was authored by Chief Justice John Roberts and joined by Justices Sotomayor, Kagan, Jackson, Gorsuch, and Barrett. Legal observers noted it represented the most significant judicial check on presidential economic authority in decades, with comparisons drawn to the Supreme Court's reversal of New Deal policies in the 1930s.

The majority reached its conclusion through two lines of reasoning. The three conservative justices in the majority — Roberts, Gorsuch, and Barrett — applied the major questions doctrine, holding that policies of such sweeping economic significance require explicit congressional authorization. The three liberal justices — Sotomayor, Kagan, and Jackson — agreed IEEPA does not authorize tariffs, but based their conclusions on standard statutory interpretation. Justices Thomas, Kavanaugh, and Alito dissented. Trump responded on social media, calling the justices in the majority a disgrace.

Within hours of the ruling, the White House announced that President Trump signed a proclamation imposing a temporary 10% ad valorem import duty on goods entering the United States, this time invoking Section 122 of the Trade Act of 1974 — a separate legal authority. The new duty is scheduled to take effect February 24 and will remain in place for 150 days. It includes exemptions for critical minerals, pharmaceuticals, energy products, and certain agricultural goods. The administration stated the measure is aimed at correcting a balance-of-payments deficit and incentivizing domestic production.