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Our Amicus Brief in Case Challenging Trump's Section 338 Tariffs Against Canada

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Somin, I. (2026, November 14). Our Amicus Brief in Case Challenging Trump's Section 338 Tariffs Against Canada. Reason. https://reason.com/volokh/2026/11/14/our-amicus-brief-in-case-challenging-trumps-section-338-tariffs-against-canada/

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Reason · collected 2026-11-14 · by Ilya Somin

Quick Summary

The Cato Institute and the author have filed an amicus brief with the US Court of International Trade in the case Gellert Global Corp. v. Trump, which challenges the legality of former President Donald Trump's 50% tariffs on Canadian imports under Section 338 of the Tariff Act of 1930. The brief argues that these tariffs are illegal because they do not meet the requirements of Section 338, which mandates that tariffs must be imposed in response to discriminatory trade restrictions by foreign countries, and that the statute has been superseded by later legislation. Additionally, the brief contends that interpreting Section 338 to allow such broad presidential authority violates the major questions and nondelegation doctrines.
Written by AI on 2026-11-15, from this article's own text only (the story summary below draws on all the coverage).

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Story

Amicus Brief Against Trump Tariffs
Politics · 1 article(s) covering the same event.
How this article was measured signals, leaning charts, publisher record, byline, topics and claims

Signals How these are calculated →

Claims extracted
17
sentences that state something as happening or true
Uncertain
6%
1 of 17 hedged ("reportedly", "may", "according to")
Leaning
Leans strongly left
of the writing, not the subject · beta estimate
Publisher signals
67/100
Reason's corrections and hedging, across everything collected from it. Not a measure of accuracy.
Outlets on this story
1
Politics
Same framing elsewhere
1
articles that frame the event the way this one does
Analyzed 2026-11-15 · how these are computed

How this is being covered How these are calculated →

Article leaning vs. publisher reliability
Source leaning vs. consistency

Publisher

Reason · 1334 article(s) · 4 correction(s) detected
Running correction rate · 4 correction(s)

Who wrote this

Ilya Somin
38 article(s) here · 0 carrying a prediction
Among other things, it would allow the federal government to suspend the writ of habeas corpus (and thereby detain people - including US citizens - without due process) at any time.
Just months ago, the Supreme Court in Learning Resources applied those fundamental principles to hold that the President may not use a general grant of authority to "regulate … importation" to impose tariffs, because the power to "regulate" is not the power to tax and Congress did not clearly delegate its taxing power.
A few of my own experiences with Posner and his work may shed some small additional light on the man and his achievements.
2026-11-12 · assertive framing · Judge Richard Posner, RIP
The Republicans may be able to effectively bottle up the impeachment in committee for the rest of the current Congress (which ends on January 3, 2027).
2026-11-11 · mixed framing · The Hegseth Impeachment is Far From Over
Even if they don't pass in the narrowly Republican-controlled lame duck Congress, they will almost certainly do so in the incoming Democratic one.
2026-11-09 · assertive framing · Andrew McCarthy on the Hegseth Impeachment
That makes it very likely it will happen.
2026-11-08 · assertive framing · Impeach Pete Hegseth
In each case, he illegally tried to transform relatively narrow delegations to the executive into a blank check to impose tariffs at will.
I address a variety of counterarguments, including claims that voting for a lesser evil makes you morally complicit in that candidate's wrongdoing, arguments that it's better to cast a "protest vote" for a candidate that has no chance of winning, arguments based on the very low probability that your vote will be decisive, and more.
If Section 338 is still valid and does grant the kind of nearly unlimited authority Trump claims, that would violate the constitutional "nondelegation" doctrine, which restricts delegation of legislative power to the executive…
Today, in United States v. Alaska, federal district Judge Sharon Gleason ruled against the Trump administration's lawsuit seeking to block certification of Alaska Senate election results on the grounds that doing so might be necessary to prevent "voter confusion" caused by the presence of two candidates with very similar names on the ballot.
Also by Ilya Somin
Judge Richard Posner, RIP
2026-11-12 · Reason
Nothing else under this byline is closely related to this article, so these are simply their most recent.
All 38 articles by Ilya Somin →

Topics

Cato Gellert Global Corp. Section 338 the Cato Institute the US Court of International Trade

Subjects

Trump PERSON · 4× Cato ORG · 2× Canadian NORP · 1× Donald Trump's PERSON · 1× Gellert Global Corp. ORG · 1× The Dispatch ORG · 1× the Cato Institute ORG · 1× the Liberty Justice Center ORG · 1× the Supreme Court ORG · 1× the US Court of International Trade ORG · 1×

Narrative

Yesterday, the Cato Institute and I filed an amicus brief before the US Court of International Trade, in Gellert Global Corp. v. Trump, the first case challenging Donald Trump's massive 50% Section 338 tariffs against Canadian imports.
framing: assertive · carried by 1 article(s) · first seen 2026-11-15

Claims (17 extracted, 1 hedged)

Yesterday, the Cato Institute and I filed an amicus brief before the US Court of International Trade, in Gellert Global Corp. v. Trump, the first case challenging Donald Trump's massive 50% Section 338 tariffs against Canadian imports. asserted
Institute → file → imports
The plaintiff is represented by the Liberty Justice Center, the public interest law firm I worked with on the case challenging the massive tariffs Trump imposed under the International Emergency Economic Powers Act (IEEPA). asserted
Trump → represent → Act
That case resulted in the tariffs' invalidation by the Supreme Court earlier this year. asserted
case → result → Court
I previously wrote about the Section 338 tariffs and why they are harmful and illegal in an article in The Dispatch, and a paper for the Montreal Economic Institute. asserted
they → write → Institute
We are grateful to Daniel Cannistra and others at Crowell & Moring for their invaluable pro bono assistance in helping draft and submit the brief on very short notice. asserted
We → draft → notice
Here is a summary of our key arguments, which should soon be posted at the Cato website: asserted
which → post → website
This brief explains why Section 338 of the Tariff Act of 1930 cannot be used to impose the tariffs enacted by Defendants, and why doing so violates the major questions and nondelegation doctrines. asserted
doing → explain → questions
The Court should strike down the Section 338 duties for three reasons. asserted
Court → strike → reasons
First, Section 338 requires that any tariffs imposed be in response to discriminatory trade restrictions enacted by foreign trading partners, and that those tariffs "offset" the barriers imposed by those countries. asserted
tariffs → require → countries
The Section 338 tariffs imposed by the Trump administration violate both of these requirements. asserted
tariffs → impose → requirements
In addition, Section 338 has been superseded by later statutes and is no longer operative. asserted
Section → supersede → statutes
Second, the major questions doctrine forecloses interpreting Section 338 to permit the President to impose extraordinary import taxes whenever another country imposes any trade restrictions or declines to purchase American goods. asserted
country → foreclose → goods
to "speak clearly" when it assigns to the executive "decisions of vast 'economic and political significance.'" asserted
it → speak → significance
The sweeping power claimed by the administration in this case undeniably raises a major question, and it is at the very least unclear that Section 338 actually grants such vast authority. uncertain
Section → claim → authority
Third, stripping the statute's qualitative conditions of operative force violates the nondelegation doctrine, which constrains delegation of legislative power to the executive. asserted
which → strip → executive
An extremely high rate ceiling of 50 percent cannot substitute for clear legislative limiting how and when tariffs can be imposed. asserted
tariffs → substitute → limiting
Cato and I (together with Prof. Michael McConnell) also recently submitted an amicus brief in litigation challenging Trump's massive Section 301 tariffs. asserted
Cato → submit → tariffs
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