Court tests 10% tariff
A U.S. trade court is hearing challenges to the Trump administration’s 10% global import tax, a case that could determine whether the president can use wide-reaching tariffs without new laws from Congress. The dispute matters beyond legal doctrine because reports that options traders placed large bets minutes before a previous tariff-pause announcement have stoked worries that sudden presidential policy moves create uneven market advantages and add uncertainty for firms. (reuters.com) (investing.com)
A three-judge panel in New York is hearing a case that asks a blunt question: can a president put a 10% tax on nearly every import by declaring an emergency, or does Congress have to write that law first. The court is the United States Court of International Trade, the federal court that handles customs and trade fights. (reuters.com) (cit.uscourts.gov) The tariff at the center of the case came from Executive Order 14257, signed on April 2, 2025. That order set a 10% duty on most imports and said the legal hook was the International Emergency Economic Powers Act, a 1977 law usually used for sanctions and asset freezes. (federalregister.gov) (congress.gov) That law lets a president act after declaring an “unusual and extraordinary threat” that comes largely from outside the United States. In this case, the administration said large and persistent United States goods trade deficits were the emergency. (law.cornell.edu) (federalregister.gov) The challengers say that reading turns an emergency statute into a blank check for tariff policy. Their argument is that Congress wrote other trade laws with detailed limits and procedures, so a president should not be able to reach the same result by calling trade deficits an emergency. (reuters.com) (congress.gov) This is not the first time the trade court has pushed back. In a May 28, 2025 opinion, the same court said the International Emergency Economic Powers Act did not give the president “unbounded authority” to impose the challenged tariffs in two related cases. (cit.uscourts.gov) That earlier ruling did not end the fight, because tariff orders kept being revised and the legal challenges kept moving. The April 10, 2026 hearing now puts the broader 10% global tariff squarely in front of the court again. (reuters.com) (federalregister.gov) For companies, a tariff works like a surprise sales tax collected at the border. An importer that brings in $10 million of goods suddenly owes another $1 million, and that extra cost can hit prices, margins, or both. (federalregister.gov) (reuters.com) The case got more attention after Reuters reported a string of unusually well-timed trades before major Trump policy moves. In one March 23, 2026 episode, traders sold about 5,100 lots of Brent and West Texas Intermediate crude futures in one minute before Trump announced a five-day delay to attacks on Iran’s energy infrastructure, and oil prices then fell about 15%. (investing.com) Reuters also reported that six accounts made a combined $1.2 million profit on Polymarket bets funded in the hours before the February 28, 2026 raids tied to Iran. The report did not say those trades proved insider trading, but it did say legal experts wanted scrutiny to see whether policy information was leaking. (investing.com 1) (investing.com 2) That is why this tariff case is bigger than one import tax. If the court says the president can use emergency powers this way, markets have to price in the chance that a single White House announcement can redraw supply chains and move billions of dollars in minutes. (reuters.com) (investing.com)
