A US appeals court has ruled that most global tariffs imposed by former US President Donald Trump are illegal, setting up a potential legal showdown. The decision could significantly affect his past foreign policy agenda and is likely headed to the Supreme Court.

• The US Court of Appeals for the Federal Circuit, in a 7-4 decision, rejected Trump's argument that the tariffs were permitted under an emergency economic powers act.
• Trump had justified the tariffs under the International Emergency Economic Powers Act (IEEPA), but the court ruled that imposing tariffs is "a core Congressional power" and not within the president’s mandate.
• The ruling, which Trump called a "total disaster for the Country" on Truth Social, affects "reciprocal" tariffs and those on China, Mexico, and Canada, though it does not apply to all tariffs like those on steel and aluminum.