A federal court has ruled against the new global tariffs that President Donald Trump imposed after a stinging loss at the Supreme Court. A split three-judge panel of the Court of International Trade in New York on Thursday found the 10 per cent global tariffs were illegal after small businesses sued.

The court ruled 2-1 that Trump overstepped the tariff power that Congress had allowed the president under the law. The tariffs are "invalid" and "unauthorised by law", the majority wrote. The third judge on the panel found the law allows the president more leeway on tariffs.