United States President Donald Trump has sharply criticized the Supreme Court after a 6-3 ruling struck down his global tariffs imposed under the International Emergency Economic Powers Act (IEEPA). Speaking at a Friday news conference, Trump called the court a “disgrace” and accused it of being influenced by foreign interests. He said he would continue his tariff policy using the Trade Expansion Act of 1962, announcing a new 10 percent global tariff for 150 days to replace some of the duties invalidated by the court. The new measure is expected to take effect within three days.

The Supreme Court majority, comprising three liberal and three conservative justices, ruled that only Congress can levy tariffs in peacetime. The decision dealt a major blow to Trump’s economic agenda, which had projected $3.6 trillion in tariff revenue from 2026 to 2035. Oxford Economics estimated the ruling would immediately lower the effective tariff rate from 12.7 percent to 8.3 percent. Trump, however, insisted that his powers under the Trade Expansion Act could yield even higher revenues.

Experts warned that the ruling complicates the administration’s ability to impose tariffs quickly, creating uncertainty for businesses and consumers. Analysts said Trump’s alternative approach may sustain tariff burdens but with reduced flexibility and scope.