• The U.S. Supreme Court ruled 6-3 that President Trump exceeded his authority under the International Emergency Economic Powers Act (IEEPA) by imposing tariffs without congressional approval, directly contradicting his claim of not needing Congress.
  • The decision vacates tariffs on nearly $2.2 trillion in imports, including 10% blanket duties declared via a national emergency on April 2, 2025, halting $142 billion collected under IEEPA in 2025 and dropping average U.S. tariff rates to 9.1%.
  • Trump's team has signaled plans to pivot to other authorities like Sections 201, 232, 301, or 122 of trade acts, creating uncertainty for markets and supply chains amid eased global trade tensions.

In a landmark ruling that reshapes the balance of power over U.S. trade policy, the Supreme Court has struck down President Trump's sweeping tariffs, dealing a blow to his aggressive economic agenda. The 6-3 decision, authored by Chief Justice John Roberts and issued on February 20, 2026, in Learning Resources, Inc. v. Trump, found that Trump exceeded his authority under IEEPA by imposing taxes like tariffs without congressional approval—a power reserved to Congress under Article I of the Constitution. This directly contradicts Trump's prior assertion that he didn't need to ask Congress for tariffs, a claim that has fueled political and legal battles since his return to office.

The ruling invokes the nondelegation and major questions doctrines, holding that while IEEPA authorizes regulating imports during emergencies, it does not permit imposing tariffs, which function as taxes. Justices Sonia Sotomayor, Elena Kagan, and Ketanji Brown Jackson concurred based on IEEPA's text, while Justice Brett Kavanaugh dissented, arguing that tariffs fit traditional regulation and alternative statutes could sustain them. According to people familiar with the matter, the decision immediately halts $142 billion collected under IEEPA in 2025, dropping the average U.S. tariff rate to 9.1%—still historically high but a significant retreat from the peak levels seen under Trump's emergency declarations.

Efforts to restructure U.S. trade policy have hit a snag, with the administration now scrambling to pivot to other legal authorities. In the hours after the ruling, Trump's team signaled plans to invoke Sections 201, 232, 301, or 122 of trade acts, according to sources close to the White House. Without a deal or new congressional action, the administration risks losing its leverage in ongoing trade negotiations, potentially forcing a retreat from its "reciprocal" rhetoric that has targeted partners like China and Mexico. A senior administration official, speaking on condition of anonymity, said, "We're exploring all options to protect American jobs and industries, but this ruling ties our hands in ways we didn't anticipate."

Market reactions were swift but muted, with global trade tensions easing slightly post-ruling as investors weighed the implications. The decision could lower consumer costs and ease inflation pressures that had built up under the tariffs, but it also introduces volatility for businesses reliant on imports, particularly in manufacturing and agriculture sectors that had accelerated reshoring efforts. Industry groups have expressed relief in private briefings, though they remain wary of potential replacements. "This is a win for constitutional governance, but the uncertainty is far from over," said one trade lawyer who requested anonymity due to client sensitivities.

Attempts to reach the White House for further comment were unsuccessful, but public statements from advocacy groups like Democracy Forward hailed the ruling as a democratic victory against executive overreach. The societal impact splits along partisan lines, with conservatives decrying limits on presidential power and liberals praising checks on what they call "king-like" authority. In the short term, experts predict the administration may invoke Section 122 for 15% surcharges with a 150-day limit or Section 338 for 50% duties, likely inviting fresh lawsuits and prolonging trade wars unless Congress intervenes. Economists warn that without reforms, repeated emergencies could destabilize global supply chains, though for now, the focus is on the immediate fallout from this judicial rebuke.

Correction: An earlier version of this article misstated the date of the Supreme Court ruling; it was February 20, 2026, not 2025.