US President Donald Trump warned Friday of cataclysmic consequences on the US economy if a court rules that his imposition of sweeping tariffs constitutes an illegal power grab.

If a "Radical Left Court" strikes down the tariffs, "it would be impossible to ever recover, or pay back, these massive sums of money and honor," he wrote on his Truth Social platform.

"It would be 1929 all over again, a GREAT DEPRESSION!" he said.

Trump's hyperbolic statements come as a US appeals court weighs the legality of his broad use of emergency powers to enact sweeping tariffs on trading partners.

A lower court ruled against Trump in May, but the US Court of Appeals for the Federal Circuit put the ruling on hold as it considers the case.

Trump on Friday touted billions of dollars in tariff revenue "po

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