The Trump administration has appealed to the Supreme Court following a federal appeals court decision that the President lacks authority to impose tariffs under the International Emergency Economic Powers Act (IEEPA). On August 29, the US Court of Appeals for the Federal Circuit ruled that IEEPA does not grant the President the power to levy tariffs on imports, a decision supported by 15 judges across three courts. The administration had used IEEPA to justify tariffs ranging from 10% to 50% on imports from major trading partners, including Canada, Mexico, and China. The Department of Justice filed a petition for expedited review with the Supreme Court on September 4, seeking to fast-track oral arguments. The Federal Circuit's ruling is stayed until October 14, allowing the tariffs to remain in effect temporarily. If the Supreme Court upholds the lower court's decision, it could invalidate all IEEPA-based tariffs, potentially leading to refunds for companies that paid these duties. The outcome of this case could significantly impact US trade policy and economic relations.