Washington, Jun 11 (AP) President Donald Trump on Wednesday hailed a favourable decision by a federal appeals court over his sweeping tariff policy as a “great” win for the United States.

Trump said on his social media site that the court's decision Tuesday night to let the government keep collecting his sweeping import taxes while challenges to his signature trade policy continue on appeal means the US “can use TARIFFS to protect itself against other countries.” “A great and important win for the US," Trump wrote.

The decision by the US Court of Appeals for the Federal Circuit extends a similar ruling it made after another federal court struck down the tariffs May 28, saying Trump had overstepped his authority. Noting that the challenges to Trump's tariffs raise “issues of exceptional importance," the appeals court said it would expedite the case and hear arguments July 31.

The case involves 10 per cent tariffs the Republican president imposed on almost every other country in April and bigger ones he imposed and then suspended on countries with which the United States runs trade deficits.

It also involves tariffs he plastered on imports from China, Canada and Mexico to pressure them to do more to stop the illegal flow of immigrants and synthetic opioids across the US border.

In declaring the tariffs, Trump had invoked emergency powers under a 1977 law. But a three-judge panel of the US Court of International Trade ruled he had exceeded his power.

That ruling from the Court of International Trade came after several lawsuits arguing Trump's tariffs exceeded his authority and left the country's trade policy dependent on his whims.

The tariffs upended global trade, paralysed businesses and spooked financial markets. (AP) GSP

Emergency powers invoked for sweeping tariffs face expedited appellate review while revenue collection continues. A federal appellate panel allowed continued collection of broadly applied import tariffs while expedited review examines whether the President lawfully invoked emergency powers under a 1977 statute. The dispute follows a trial-level finding that the executive exceeded statutory authority and centers on statutory delegation, judicial review, and whether wide-ranging tariff measures fall within permissible executive emergency action.