Trump’s sweeping tariffs blocked by U.S. court: What happens next?

A U.S. federal trade court delivered a significant blow to President Donald Trump’s trade policy on Wednesday, ruling that his administration exceeded presidential authority when it imposed sweeping tariffs on nearly all U.S. trading partners.

The decision puts the future of his aggressive tariff agenda in legal jeopardy and throws ongoing trade negotiations into uncertainty.

What the Court Ruled

A three-judge panel of the U.S. Court of International Trade found that Trump improperly used the 1977 International Emergency Economic Powers Act (IEEPA) to justify new tariffs, which he claimed were necessary to address the national emergency posed by persistent U.S. trade deficits. The court determined that:

• The declaration of trade deficits as a national emergency was not justified under IEEPA.
• The tariffs did not directly address the purported crisis.
• The use of emergency powers in this context violated the constitutional role of Congress, which holds the authority to impose tariffs and taxes.
   

The ruling blocks the April 2 “Liberation Day” tariffs, which included:

• Up to 50% reciprocal tariffs on nations with trade surpluses against the U.S.
• A 10% baseline tariff on virtually all other imports.
• Earlier IEEPA-based tariffs on China, Mexico, and Canada.
   

However, other Trump-era tariffs—such as those on steel, aluminum, and autos—remain in place. These were enacted under different legislation requiring Commerce Department review and are not affected by the ruling.

Legal Path Ahead

While the ruling is a major setback for the Trump administration, it is not the final word. The case is expected to proceed to the U.S. Court of Appeals for the Federal Circuit, and potentially to the Supreme Court. The trade court's decision combined multiple lawsuits, including those filed by 12 U.S. states and several small businesses.

The uncertainty is likely to stall negotiations with trade partners, some of whom were under pressure to offer concessions during a 90-day tariff suspension initiated by Trump earlier this year.

“Partners negotiating hard during the 90-day tariff pause period may be tempted to hold off making further concessions to the U.S. until there is more legal clarity,” said Wendy Cutler, vice president at the Asia Society Policy Institute.

Implications for U.S. Trade and Business

Companies may now rethink supply chain strategies, potentially accelerating shipments to the U.S. in case tariffs are reinstated through appeal. The decision also injects volatility into global markets, already rattled by the tariffs' impact on prices and supply flows.

“The ruling destroys the Trump administration’s rationale for using federal emergency powers to impose tariffs,” said Eswar Prasad, professor of trade policy at Cornell University. “It makes clear that these broad, unilateral tariffs represent an overreach of executive power.”

What Authority Remains?

Trump still holds limited tariff powers under the Trade Act of 1974, which allows:

• Tariffs of up to 15%
• A maximum duration of 150 days
• Application only to countries with which the U.S. has significant trade deficits
   

However, these restrictions make it far harder for the administration to pursue the same scale of tariff-based leverage without Congressional approval.

As legal battles continue, the ruling has temporarily halted the most aggressive elements of Trump’s trade strategy—casting doubt over its long-term viability and reinforcing concerns about executive overreach in U.S. economic policy.

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