What the Court Ruled
A federal court—the U.S. Court of International Trade—ruled that Donald Trump exceeded his authority by imposing the so-called "Liberation Day" tariffs, which were broad, across-the-board duties on imports from countries that export more to the U.S. than they import. The court found that the U.S. Constitution gives Congress, not the president, the exclusive power to regulate trade with foreign nations and to impose tariffs. The court determined that the emergency powers Trump cited (specifically, the International Emergency Economic Powers Act, or IEEPA) do not override this constitutional delegation to Congress158.
Does This Mean Trump Can No Longer Set Tariffs?
In short: Trump cannot impose sweeping, unilateral tariffs without congressional authorization.
- The court permanently blocked the "Liberation Day" tariffs, stating that the president does not have the unilateral authority to impose such tariffs under current law235.
- The ruling emphasized that only Congress can "lay and collect Taxes, Duties, Imposts and Excises," and that the president cannot use emergency powers to bypass this constitutional requirement58.
- The decision applies specifically to the kind of broad, global tariffs Trump attempted to enact. It does not necessarily prohibit the president from imposing tariffs in all circumstances—presidents may still have authority to impose certain tariffs if Congress has delegated that power in specific statutes (such as for national security under Section 232 of the Trade Expansion Act, or anti-dumping duties)6.
What Happens Next?
- Most of Trump's recent tariffs are now on hold due to a permanent injunction from the court, effectively stopping his global tariff plans unless Congress acts or a higher court overturns the decision24.
- Some tariffs may still remain in effect if they were imposed under other, more specific statutory authorities, but the bulk of Trump's global tariffs are blocked2.
- The ruling may be appealed, but as of now, it sets a precedent that the president cannot unilaterally impose sweeping tariffs under emergency economic powers without explicit congressional authorization357.
Summary Table: Presidential Tariff Authority After the Ruling
Conclusion
Trump—and any future president—cannot set broad, unilateral tariffs like the "Liberation Day" tariffs without explicit congressional approval. The president’s ability to impose tariffs is now more limited, and must be grounded in a clear, specific delegation of authority from Congress158.