President Donald Trump has launched an urgent appeal to the Supreme Court, seeking to safeguard much of the tariff regime he has negotiated for imports from key trade partners and warning the tariffs’ removal could trigger what his administration has termed an “economic catastrophe.” Trump’s demand, framed in both public statements and legal filings, comes amid mounting uncertainty over the future of his tariff authority, following rulings by federal courts that many of his actions were, in fact, as illegal as they appeared on their face to analysts and constitutional scholars.
At the heart of the dispute is the International Emergency Economic Powers Act (IEEPA), which Trump leveraged to impose “Liberation Day” tariffs, including new levies on China, Mexico, and Canada earlier this year. While the administration argues these tariffs are necessary responses to extraordinary threats, such as the flow of fentanyl or persistent trade deficits, two federal courts have determined that Trump exceeded his lawful authority, reaffirming the power to levy tariffs remains a congressional prerogative and the emergency invoked by Trump while exercising the IEEPA did not fit the situation he inherited as president.
