Supreme Court Invalidates IEEPA Tariffs with Justices Split on Major Questions Doctrine

On February 20, 2026, in Learning Resources, Inc. v. Trump, the Supreme Court held that the International Emergency Economic Powers Act (IEEPA) does not authorize the president to impose tariffs. In a 6-3 decision written by Chief Justice Roberts, the Court concluded that IEEPA's authority to "regulate . . . importation" does not include the power to impose tariffs.... By: Venable LLP