The U.S. Court of International Trade rendered a decision on May 7, 2026, that severely damaged the legal framework supporting the Trump administration’s trade policy. The court determined that the 10% global tariff imposed under Section 122 of the Trade Act of 1974, which applied to almost all imported goods beginning on February 20th, was illegal since the legislative requirement for invoking Section 122 had not been fulfilled.
According to the legislation, a president cannot apply emergency tariffs unless there are “large and serious” balance-of-payments deficits. The court concluded that those deficiencies did not exist in the manner specified by the Act. The authority vanishes in the absence of the statutory condition. The tariff decreased.
| Category | Details |
|---|---|
| Key Organisation | Pacific Legal Foundation (PLF) — libertarian public interest law firm; central to litigation challenging Trump administration tariff authority |
| Ruling Date | May 7, 2026 — U.S. Court of International Trade |
| Tariff Challenged | 10% global tariff imposed under Section 122 of the Trade Act of 1974 — surcharge applied February 20, 2026 |
| Court’s Finding | Tariffs unlawful — “large and serious” balance-of-payments deficits (required by Section 122) did not exist; administration exceeded its statutory authority |
| Co-Plaintiffs | Liberty Justice Center; Oregon Attorney General Dan Rayfield — joint challenge to the Section 122 surcharge |
| Relief Granted | Initially limited to plaintiffs in the case — not a nationwide injunction; potential refunds for affected businesses |
| Administration Response | Appealed immediately; appeals court temporarily paused the lower court ruling — tariffs remained in place pending further review |
| Prior PLF Victory | Supported challenge to IEEPA tariffs — Supreme Court found those tariffs unlawful on February 20, 2026 |
| Small Business Case | Princess Awesome v. Customs — PLF representing small importers arguing broad tariffs threaten survival of niche businesses |
| Ongoing Risk | New Section 301 investigations continue; trade war legal landscape remains active and unresolved at the Court of International Trade |
The Pacific Legal Foundation had been pursuing this goal through a concerted litigation strategy, which had already yielded one noteworthy outcome earlier in the year—the Supreme Court’s February ruling that IEEPA tariffs were illegal. Building on that momentum, the Section 122 lawsuit collaborated with Oregon Attorney General Dan Rayfield and the Liberty Justice Center to take the issue to the Court of International Trade.
The central tenet of PLF’s argument, which has been consistently applied throughout these cases, is that only Congress has the constitutional authority to impose taxes, and the executive branch cannot replace that authority by simply rebranding tariffs as economic or national security measures. The court concurred.
At first, the ruling’s practical relief was more limited than the title implied. Instead of granting a countrywide injunction that would have immediately barred the duties for all importers, the CIT restricted the initial remedy to the plaintiffs in the case.
That restriction is important. When the decision was made, a small company that was not involved in this specific dispute but was importing specialist goods from overseas—the type of firm PLF is defending in its own Princess Awesome v. Customs case—did not immediately receive relief. Refunds were possible, but they required either being named in the action or following the legal proceedings through an appeal.
Additionally, the administration responded to the appeal quickly. The 10% tariffs remained in effect as the challenge made its way up the legal system after an appeals court temporarily halted the lower court’s decision.
The entire trade war litigation has followed this pattern: a court rules that the tariffs are illegal, the administration files an appeal, the tariffs remain in place while that review is conducted, and the business community bears the interim costs, which may or may not be reimbursed. The uncertainty is a cost in and of itself. Contracts cannot be confidently priced. When a court issues an order, supply chains cannot be reorganized based on tariff rates that could fluctuate in either way.
It’s difficult to ignore the fact that the Court of International Trade and the Supreme Court have now denied the administration’s tariff authority on IEEPA, and the tariffs are still in effect in the majority of cases.
The legal successes are genuine and moving in the right direction. At the heart of the most significant trade legal dispute in a generation is the question of what that something will look like after the appeals process is over and if Congress takes action to enhance or clarify the executive’s trade authority in the interim.
