The Supreme Court ruled that President Trump lacked the authority under the International Emergency Economic Powers Act (IEEPA) to impose broad tariffs. The 6-3 decision found the law does not explicitly grant power for tariffs,

The US Supreme Court on Friday dealt its biggest blow against Donald Trump, ruling the president had no authority to use emergency powers to impose tariffs.

The warning was borne out mere hours later when US President Donald Trump announced a 10 per cent “global tariff” on top of existing measures.