Trump IEEPA Tariffs SCOTUS Ruling: Section 122 Fix
The Supreme Court struck down $166 billion in IEEPA tariffs. Trump invoked Section 122 the same day. Mexico says the ruling actually hurts them. Here's how the tariff machine rebuilt itself overnight.

The Supreme Court's 6-3 ruling in Learning Resources v. Trump struck down $166 billion in IEEPA tariffs as illegal, ordering refunds to 330,000+ importers. Within hours, Trump invoked Section 122 of the 1974 Trade Act to impose a new 10% global tariff — capped at 150 days, expiring July 24 unless Congress extends it. The Albis Perception Gap Index scored this story 5.88, with Latin American and US coverage diverging most sharply at 7.0.
The Supreme Court said no. Trump said "same day."
Six justices — including two Trump appointees — ruled that IEEPA doesn't grant the power to impose tariffs. Chief Justice Roberts wrote that two words buried in the statute, "regulate" and "importation," "cannot bear such weight." It was the sharpest judicial rebuke of presidential trade policy in modern American history.
Trump didn't comply. He switched statutes.
The Same-Day Pivot
Before the ink dried, Trump signed an executive order invoking Section 122 of the Trade Act of 1974 — a Cold War-era provision for balance-of-payments emergencies. It lets a president impose tariffs up to 15% for 150 days without Congress.
Trump set the rate at 10%, effective February 24. One day later, he posted he'd raise it to 15% "where appropriate."
The constitutional constraint lasted about four hours.
$166 Billion in Limbo
The number that matters: $166 billion. That's what 330,000 importers paid in IEEPA tariffs across 53 million shipments before the Court called them illegal. They're all owed refunds — with interest accruing at $650 million per month.
The Court of International Trade has 2,000+ lawsuits seeking those refunds, from FedEx, Costco, L'Oréal, Dyson, and Nissan. U.S. Customs says it needs a new IT system just to process them. Earliest estimate for the refund platform: mid-April. For 330,000 businesses that already paid, "mid-April" means "eventually."
The replacement tariffs are already collecting new revenue.
The Three-Lane Workaround
Section 122 is a stopgap — it expires July 24 without Congressional action. But it's not the only lane.
On March 11, USTR Jamieson Greer opened Section 301 investigations into nearly 80 countries, including China, Japan, India, Mexico, and the EU. One targets "structural excess capacity" in manufacturing. Another targets 60 countries for allegedly failing to enforce forced-labour laws.
Mayer Brown's legal analysts put it bluntly: these investigations "are expected to result in country-specific tariffs that are close, if not identical to, the IEEPA tariffs previously deemed unlawful."
The Court closed one door. The administration opened three.
The Mexican Surprise
This is where the story splits depending on where you read it.
In the US, coverage centres on the constitutional drama — Trump attacking his own appointees, calling Gorsuch and Barrett justices who "sicken me." That's the story Americans saw.
Mexican media told a different one. Analysts in El País México and Expansión warned the ruling actually hurts Mexico. Under IEEPA tariffs, Mexico faced punishing rates — but so did everyone else. With a flat 10% replacement, Mexico's relative trade advantage shrinks. Competitors' tariffs drop. Mexico loses the position it carved out through direct negotiations.
BBC Mundo reported a detail barely mentioned in English: $130 billion had already been collected under IEEPA before the ruling. Expansión caught Trump's Section 122 pivot hours before most US outlets did.
Beijing's Long View
Fudan University legal scholars dissected the ruling through a different lens. They didn't ask whether it was right. They asked: does this constrain the US from weaponising emergency economic powers long-term?
Their answer: mixed. The Court blocked IEEPA tariffs, but Section 301 investigations could produce identical results within months. The tool changed. The hand didn't.
For European and Asian trading partners watching the oil crisis compound trade uncertainty, the ruling offered a week of relief. Then the Section 301 notices arrived.
The July Cliff
The maths: Section 122 tariffs expire July 24. Section 301 investigations take months. If Congress doesn't extend and Section 301 findings aren't ready, there's a gap — potentially the first tariff-free window since Trump took office.
But even after the ruling, the Tax Foundation found the weighted average tariff rate on all US imports only dropped from 13.8% to 6.7%. Section 232 steel and aluminium tariffs remain untouched. The tariff floor isn't zero. It's still historically high.
The Court ruled a president can't impose sweeping tariffs under emergency powers. Five weeks later, tariffs are back under different names, refunds haven't started, and 80 countries face new investigations.
The ruling changed the statute. It didn't change the policy.
Sources & Verification
Based on 5 sources from 2 regions
- CNBCNorth America
- SCOTUSblogNorth America
- Tax FoundationNorth America
- Mayer BrownInternational
- PoliticoNorth America
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