The Supreme Court of the United States ruled that Trump's global tariffs are illegal.

On the morning of February 20, Eastern Time in the United States, and late evening Beijing time, the U.S. Federal Supreme Court announced its ruling, determining that the Trump administration's implementation of major tariffs under the U.S. International Emergency Economic Powers Act lacks clear legal authorization. The Federal Court Justices upheld the lower court's ruling with a 6-3 decision, stating that Trump's use of the International Emergency Economic Powers Act to impose tariffs "exceeded his statutory authority." However, this ruling only limits Trump's ability to impose tariffs under the International Emergency Economic Powers Act, and does not completely strip him of his tariff powers. Trump had previously imposed tariffs on products such as copper, steel, and aluminum under other trade laws. The Trump administration, after coming to power in 2025, invoked the U.S. International Emergency Economic Powers Act to announce a series of tariff measures without congressional approval, through executive orders, leading to a series of legal challenges in the United States. After the U.S. Federal Circuit Courts of Appeal and the U.S. International Trade Court ruled that Trump's blanket tariffs policy was illegal, the Trump administration appealed to the Federal Supreme Court.