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Courts push back as Trump cites national emergencies to justify unilateral actions
Donald Trump has repeatedly invoked national emergency powers to justify trade actions, deportations and troop deployments, and recent court decisions and judicial findings have begun to limit or scrutinize those claims.
Mar 27th 2026 · United States
Insights
- Donald Trump has invoked national emergency authority under IEEPA to justify tariffs, deportations and other unilateral measures.
- The Supreme Court recently ruled that the president lacked authority under IEEPA to impose broad tariffs on more than 80 countries.
- Administration officials suggested using IEEPA to impose a trade embargo on Spain after Spain denied U.S. use of air bases.
- A federal judge in Portland, Karin Immergut, found the administration's claims of widespread violence there were untethered to the facts when justifying National Guard deployments.
- Critics noted administration claims used to justify measures, including fentanyl-related tariffs on Canada, rested on seizure data that showed far larger amounts seized at the Mexico border than at the Canadian border.
- Some Democrats and legal observers warn that falsely invoked emergencies could be used to justify domestic deployments or other actions that might affect the November elections.