The decision comes less than 24 hours after another court ruled against the president's use of an emergency law to justify tariffs on dozens of the United States' largest trading partners.
The U.S. Court of International Trade ruled unanimously that the president overstepped his powers in issuing the tariffs on countries around the world, most of which he's since paused.
The challengers say the president is violating the Constitution and hope the Court of International Trade will grant their request for a preliminary injunction before the end of the month.