President Donald Trump has appealed to the US Supreme Court to overturn a lower court's decision that declared many of his tariffs illegal. This move comes after a divided US Court of Appeals for the Federal Circuit ruled 7-4 that the president’s tariffs, imposed under an emergency economic powers act, exceeded his authority.

• The ruling could force the US to refund billions in tariffs and significantly impact Trump's economic and foreign policy agenda.
• The Solicitor General John Sauer argued that the lower court’s “erroneous decision has disrupted highly impactful, sensitive, ongoing diplomatic trade negotiations.”
• The decision from the US Court of Appeals for the Federal Circuit, if left unchallenged by the Supreme Court, could take effect on October 14, following an initial ruling in May by the New York-based Court of International Trade.