In a major blow to former President Donald Trump’s trade agenda, the U.S. Court of Appeals for the Federal Circuit ruled on August 29, 2025, that most of his tariffs, including those imposed on China, were illegal. With a 7-4 vote, the court declared that Trump overstepped his authority under the International Emergency Economic Powers Act (IEEPA). This landmark decision raises questions about the future of U.S. trade policy, U.S.-China negotiations, and the broader global economy. Will Trump’s tariff strategy collapse, or will he fight back? Let’s dive into the details.
The Court’s Ruling: A Legal Setback for Trump
The Federal Circuit’s 7-4 ruling determined that Trump’s use of IEEPA to impose sweeping tariffs—particularly the “reciprocal” tariffs on global trading partners and specific tariffs on China, Canada, and Mexico—was unlawful. The court emphasized that IEEPA does not grant the president authority to impose tariffs, as the power to tax lies with Congress. “The core Congressional power to impose taxes such as tariffs is vested exclusively in the legislative branch,” the majority stated.
Notably, the ruling does not affect all of Trump’s tariffs. Levies on steel and aluminum, authorized under a 1962 law for national security, remain untouched. However, the decision invalidates tariffs justified by trade deficits, including those targeting China to address fentanyl trafficking.
The ruling won’t take effect until October 14, 2025, giving the Trump administration time to appeal to the U.S. Supreme Court. If the appeal fails, the U.S. may need to refund billions in collected duties, potentially disrupting trade agreements with countries like the EU, Japan, and South Korea.
Trump’s Response: Defiance and Dire Warnings
Trump reacted swiftly on Truth Social, insisting that “all tariffs are still in effect” and warning that their removal would be a “total disaster for the country.” He labeled the court “highly partisan” and expressed confidence in a Supreme Court reversal. This defiance underscores Trump’s commitment to tariffs as a cornerstone of his economic policy, aimed at boosting U.S. manufacturing and reducing trade deficits.
However, the ruling has already sparked debate. If upheld, it could force the U.S. to renegotiate trade deals and refund tariffs, increasing costs for American businesses reliant on imported raw materials. Consumers have already faced higher prices due to these tariffs, with supermarkets reporting increased costs for goods.

Global and Domestic Ripple Effects
The tariffs have had far-reaching consequences since their implementation in April 2025. U.S. companies saw rising costs, prompting supply chain adjustments, while trading partners like China retaliated with counter-tariffs, disrupting global trade. If the Supreme Court upholds the ruling, the ripple effects could be profound:
- Economic Impact: Refunding tariffs could strain U.S. finances, while renegotiating trade deals may weaken America’s leverage in global markets.
- U.S.-China Relations: The ruling complicates ongoing U.S.-China trade talks. Trump’s hardline stance aimed to pressure China, but a legal defeat could undermine his negotiating power, especially as China maintains a firm position.
- Global Trade: Other nations may intensify opposition to U.S. tariffs, potentially escalating trade wars. Countries like Canada and Mexico, also targeted by fentanyl-related tariffs, could push for concessions.
A Power Struggle Beyond Trade
This ruling isn’t just about tariffs—it’s a clash over presidential power. The court’s decision reinforces Congress’s authority over taxation, challenging Trump’s expansive use of executive orders. With Republicans controlling both houses of Congress, Trump’s influence over legislative and executive branches is significant, but this judicial setback highlights tensions within the U.S. government.
The case also reflects broader political divisions. Trump’s tariff policies, while popular among some voters for prioritizing American manufacturing, have drawn criticism for raising consumer prices and sparking trade disputes. The growing rift between political ambitions and public welfare could deepen if the Supreme Court upholds the ruling, potentially reshaping U.S. governance and trade policy.

What’s Next?
As the October 14 deadline looms, all eyes are on Trump’s appeal to the Supreme Court, where three of the six conservative justices were appointed by him. A favorable ruling could preserve his tariff strategy, but a loss would be a significant setback, both domestically and internationally. Beyond the U.S., global markets and trade partners are watching closely, as the outcome could redefine international trade dynamics.
Will Trump’s tariffs survive, or will this ruling mark the end of his aggressive trade war? The stakes are high, and the world is waiting for answers.