WASHINGTON, Sept 3, 2025 (BSS/AFP) - US President Donald Trump said Tuesday that he plans to seek a swift ruling from the Supreme Court as his administration pushes to overturn a court decision that found many of his tariffs illegal.

"We're going to be going to the Supreme Court, we think tomorrow, because we need an early decision," Trump told reporters.

He added that he would ask for an "expedited ruling," warning that "if you took away tariffs, we could end up being a third-world country."

The US Court of Appeals for the Federal Circuit, in a 7-4 ruling on Friday, had affirmed a lower court's finding that Trump exceeded his authority in tapping emergency economic powers to impose wide-ranging duties.

But the judges allowed these levies to stay in place through mid-October, giving Trump time to take the fight to the Supreme Court.

The ruling did not however impact sector-specific tariffs like those on steel and aluminum.

Since returning to the presidency, Trump has invoked the International Emergency Economic Powers Act to impose "reciprocal" tariffs on almost all US trading partners, with a 10-percent baseline level and higher rates for dozens of economies.

He tapped similar powers to slap separate tariffs on Mexico, Canada and China over what Trump said was the flow of deadly drugs into the United States.