Top US court says Trump did not have authority to enact tariffs under law meant for national emergencies.

The decision is a significant loss to US President Trump on an issue that has been critical for his economic agenda.

Ruling is blow to Trump’s bold assertions of authority and topples key pillar of aggressive economic agenda

Top US court says Trump did not have authority to enact tariffs under law meant for national emergencies.

In a 6-3 decision, the justices held that Trump’s tariffs were not permitted under the International Emergency Economic Powers Act

The US Supreme Court ruled that 'reciprocal' tariffs imposed by the American president were illegal.

President called justices who blocked his tariffs a ‘disgrace to the nation’ while praising three justices who dissented

Top US court says Trump did not have authority to enact tariffs under law meant for national emergencies.

Supreme Court blocks Trump's emergency tariffs, but he plans to invoke other laws to maintain and raise tariffs.

Trump called justices ‘fools’ and ‘disgrace to the nation’ after their rebuke of his aggressive trade tactic – key US politics stories from 20 February 2026 at a glance

Mr Trump’s ‘reciprocal tariffs’, imposed under an emergency powers law, were overturned by the US Supreme Court

Some countries welcome the ruling, while others review trade deals and economic effect.

Donald Trump doubles down on aggressive tariff policy with 15% global tax – key US politics stories from 21 February 2026 at a glance