Supreme Court Rules IEEPA Cannot Be Used to Impose Tariffs (Learning Resources v. Trump)

The Supreme Court held 6-3 that the International Emergency Economic Powers Act does not authorize the President to impose tariffs. All IEEPA-based tariffs, including reciprocal, fentanyl, and universal baseline duties, were struck down. CBP stopped collecting IEEPA tariffs effective 12:00 a.m. ET on Feb 24.