Story Highlights
- The Supreme Court ruled on February 20, 2026, that the International Emergency Economic Powers Act does not authorize the president to impose tariffs, invalidating the “Liberation Day” reciprocal tariffs and fentanyl-related tariffs on China, Mexico, and Canada that had been the centerpiece of Trump’s trade policy
- On May 7, 2026, the Court of International Trade ruled against Trump’s Section 122 tariffs — a replacement mechanism — though collections continue under appeal and the authority expires on July 24, 2026 unless Congress acts
- The administration is now relying primarily on expanded Sections 301 and 232 authorities to maintain its tariff wall, while processing court-mandated refunds to importers on previously collected IEEPA tariffs
What Happened
The sweeping tariff regime that defined President Donald Trump‘s early second term began to unravel in the courts with a landmark Supreme Court ruling on February 20, 2026. The justices held that the International Emergency Economic Powers Act — the statute Trump had used to impose “Liberation Day” reciprocal tariffs on dozens of countries in April 2025 — does not grant the president authority to levy tariffs. The decision invalidated not only the broad reciprocal tariff structure but also the fentanyl-related tariffs Trump had imposed on imports from China, Mexico, and Canada. U.S. Customs and Border Protection began processing court-mandated refunds to importers following the ruling.
The administration responded by pivoting to Section 122 of the Trade Act of 1974, a statute that allows the president to impose tariffs to address balance-of-payments emergencies. Temporary Section 122 tariffs were applied at a 10 percent rate on top of existing most-favored-nation rates as a substitute mechanism. However, on May 7, 2026, the Court of International Trade ruled against those tariffs as well. The decision is under appeal and tariff collections continue in the meantime, but the statutory authority for Section 122 tariffs expires automatically on July 24, 2026 — unless Congress passes legislation to extend it, a prospect that faces procedural and political obstacles given the Senate’s current dysfunction over other legislative priorities.
The administration has been simultaneously working to expand its use of Sections 301 and 232 of existing trade law — authorities specifically tied to unfair trade practices and national security, respectively — as the legal backbone of a reconstructed tariff wall. The Atlantic Council and other trade policy organizations tracking the situation note that these narrower authorities cannot easily replicate the breadth or flexibility of the IEEPA-based regime that the Supreme Court struck down.
Ambassador Jamieson Greer and the Office of the United States Trade Representative have continued to announce trade frameworks and bilateral deals, including the administration’s May 17-18 agreements from Trump’s China visit, as the White House seeks to project forward momentum. The USTR described the China deals as delivering “greater market access for American farmers, ranchers, workers, and businesses.” However, analysts reviewing both the U.S. and Chinese readouts of the summit noted significant discrepancies in how the two sides characterized the agreements — with several claimed deliverables unconfirmed by the Chinese side.
Why It Matters
The judicial dismantling of Trump’s primary tariff authorities is one of the most consequential governance stories of the second term. Trump’s tariff policy was not merely an economic tool — it was the cornerstone of his entire second-term domestic and foreign policy framework, used as leverage in negotiations with China, Europe, Canada, Mexico, and dozens of other trading partners simultaneously. A tariff regime built on legal authorities that courts have now rejected is fundamentally compromised.
For American businesses that reorganized supply chains, moved manufacturing, or made long-term investment decisions based on the permanence of Trump’s tariff wall, the legal uncertainty is deeply disruptive. The Yale Budget Lab had estimated that Trump’s tariff regime constituted the largest U.S. tax increase as a percentage of GDP since 1993, generating roughly $30 billion per month in Treasury revenue. The court-mandated refunds and narrowing of authority put that revenue base at risk.
For trading partners who negotiated deals with the United States in exchange for tariff relief, the question of whether Washington can actually deliver on those commitments has become acute. If the administration cannot legally sustain the tariff regime that gave it negotiating leverage, the deals it struck become less binding — and partners have less incentive to comply with the investment and market access pledges they made in return.
Economic and Global Context
Trump’s tariffs had raised the average U.S. tariff rate from under 3 percent at the end of 2024 to nearly 17 percent by mid-2025, the highest level since the Great Depression according to the Yale Budget Lab. That dramatic increase reshaped global trade flows, contributed to domestic inflation, and prompted retaliatory measures from trading partners including China. Even as courts have begun dismantling the legal foundation, the real-world effects on supply chains, pricing, and investment patterns remain embedded in the global economy.
The Supreme Court’s February ruling has been closely studied by trade ministries in Europe, Japan, South Korea, and elsewhere. Several governments that agreed to trade framework deals with Washington under duress are now reassessing whether the leverage that drove them to the table still exists. The European Union’s deal — which locked in a 15 percent tariff rate on EU exports in exchange for investment commitments — is now the subject of internal EU debate about whether to seek renegotiation.
China’s position is particularly complex. Beijing had used rare earth export controls as leverage in tariff negotiations, winning a 10 percent tariff reduction in late 2025. The subsequent state visit in May 2026 produced additional agreements on Boeing aircraft, agricultural purchases, and a vague “strategic stability” framework — but the legal erosion of U.S. tariff authority reduces Washington’s negotiating power in the detailed implementation discussions that follow any summit.
Implications
For the Trump administration, the most urgent task is persuading Congress to extend Section 122 authority beyond its July 24 expiration — a deadline that is approaching rapidly. The Senate’s current preoccupation with the immigration enforcement package, the anti-weaponization fund controversy, and midterm political pressures makes legislative action on tariff authority a secondary priority at best. Without congressional action, the administration faces a significant reduction in its available tariff toolkit by late July.
For importers and businesses currently paying tariffs under Section 122, the pending expiration and continued legal appeals create a planning nightmare. Companies cannot know with certainty whether the tariffs they are paying will be refunded, extended, or replaced — a level of policy uncertainty that directly affects pricing, inventory management, and capital allocation.
For American consumers, the tariff story has contributed to elevated prices across a wide range of imported goods. If courts continue to pare back the administration’s tariff authorities, some of that price pressure may eventually ease — but the adjustment process will be slow and uneven, and the political benefits of any consumer relief will likely arrive after the November elections.
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