In a recent statement, President Trump emphasized the potential national security implications if the Supreme Court were to oppose his extensive tariff policies.

“A Supreme Court decision against tariffs would pose the greatest threat to U.S. national security in history,” the president remarked in a morning post on Truth Social, expressing concern that such a ruling would leave the nation “financially defenseless.”

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President Trump on Tuesday argued that national security is at risk if the Supreme Court decides to rule against his sweeping tariff agenda.

“The biggest threat in history to United States National Security would be a negative decision on Tariffs by the U.S. Supreme Court. We would be financially defenseless,” the president wrote in an early morning Truth Social post.

“Now Europe is going to Tariffs against China, as they already do against others. We would not be allowed to do what others already do!” he added.

Last month, the Supreme Court heard oral arguments for a case related to the president’s use of emergency powers to implement tariffs, which was met with a frosty reception from the conservative court.

The Trump administration’s heightened levies on foreign partners have hit the auto and retail industry with unprecedented costs. If the tariffs are struck down by the high court, companies could be entitled to refunds from the government.

Dozens of corporations have filed lawsuits seeking reimbursements for the sweeping “reciprocal” tariffs on foreign trade partners.

“Because of Tariffs, easily and quickly applied, our National Security has been greatly enhanced, and we have become the financially strongest Country, by far, anywhere in the World,” Trump wrote in a follow-up Truth Social post Tuesday morning.

He added that only the “dark” and “sinister forces” would want to see his police end.

U.S. companies, however, have strongly pushed back on the White House’s argument that the International Emergency Economic Powers Act (IEEPA) grants the president the authority to set trade rates without congressional approval.

“Because IEEPA does not clearly authorize the President to set tariffs … the Challenged Tariff Orders cannot stand and the defendants are not authorized to implement and collect them,” a lawyer for Costco wrote in the lawsuit against the Trump administration.