On Thursday, the 11 judges on the U.S. Court of Appeals for the Federal Circuit in Washington, which typically specializes in patent law, are scheduled to hear oral arguments from the Trump administration and from the states and businesses that want his sweeping import taxes struck down.

Global leaders are rushing to seal deals with US President Donald Trump before an Aug. 1 deadline, when countries without agreements will be hit with the heaviest tariffs of up to 50%. Most countries are still lacking a trade deal, and key details are scant for those who have one.

A federal appeals panel will hear arguments from states and businesses that seek to invalidate the president’s tariffs.