California Law Generally Requiring Federal Law Enforcement Officers to Display ID Violates Supremacy Clause

Read the original at Reason ↗
Cite

Volokh, E. (2026, October 15). California Law Generally Requiring Federal Law Enforcement Officers to Display ID Violates Supremacy Clause. Reason. https://reason.com/volokh/2026/10/15/california-law-generally-requiring-federal-law-enforcement-officers-to-display-id-violates-supremacy-clause-2/

Dated from the outlet's own feed. Check the original for its byline.

Reason · collected 2026-10-15 · by Eugene Volokh

Quick Summary

A federal appeals court ruled that California's requirement for non-uniformed federal law enforcement officers to display identification while performing duties violates the U.S. Constitution’s Supremacy Clause. The decision, handed down on April 10 by the Ninth Circuit Court of Appeals, determined that section 10 of the "No Vigilantes Act" impermissibly regulates federal operations and lacks congressional authorization for such regulation. Judges Mark Bennett, Jacqueline Nguyen, and Daniel Collins concluded that California cannot directly regulate how federal officers conduct their governmental functions, emphasizing the principle that states may not interfere with federal government actions within their sphere of authority.
Written locally by qwen2.5:14b on 2026-10-15, using this article's own text rather than the other coverage of the same event (that is the story summary below).

AI analysis runs on qwen2.5:14b, locally

Story summary

As of October 14, 2026, the Trump administration secured a significant legal victory when the Ninth Circuit Court of Appeals temporarily blocked a section of California’s No Vigilantes Act. This act required plainclothes federal law enforcement agents to show their badges and identification during operations in California. The court ruled that this requirement violates the Constitution's supremacy clause, which mandates federal law takes precedence over conflicting state laws. Judges Mark Bennett, Jacqueline Nguyen, and Daniel Collins agreed that Section 10 of the No Vigilantes Act impermissibly overrides the federal government’s authority to regulate its officers. This decision is a blow to California, which has often clashed with federal immigration policies, including previous attempts to restrict funding for sanctuary cities and tighten asylum eligibility rules.

Written for “Trump Wins ICE Enforcement Case” on 2026-10-15, grounded in this article and the 1 other(s) covering the same event.
Why this leaning score
The article's own words the score was based on. Each is quoted verbatim and was checked against the article text before being stored, so you can find it in the original.
Reading Leans strongly right (beta estimate) Confidence high 2 quote(s) discarded as not found in the article
Leaning: leans strongly right for article 82827 (high confidence, 1 verified quote) · logged 2026-10-15

Story

📰 Trump Wins ICE Enforcement Case
Politics · 2 article(s) covering the same event. See how they differ ↓

Compared with similar articles

This article reads leans strongly right and hedges 13% of its claims. Each row says how that neighbour differs.
Fox News
⚖️ Leans strongly right 🔴 0% hedged 0 of 15 📰 publisher trust 68
“Both articles describe a ruling from the Ninth Circuit Court of Appeals on October 14, 2026, regarding California's No Vigilantes Act and its requirement for federal law enforcement officers to display identification.”
How this article was measured signals, leaning charts, publisher record, byline, topics and claims

Signals How these are calculated →

Claims extracted
53
sentences that state something as happening or true
Uncertain
13%
7 of 53 hedged ("reportedly", "may", "according to")
Leaning
Leans strongly right
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
2
Politics
Same framing elsewhere
1
articles that frame the event the way this one does
Analyzed 2026-10-15 · how these are computed

How this is being covered How these are calculated →

Article leaning vs. publisher reliability
Source leaning vs. consistency

Publisher

Reason · 753 article(s) · 4 correction(s) detected
Running correction rate · 4 correction(s)

Who wrote this

Eugene Volokh
143 article(s) here · 1 carrying a prediction
🔮 Even in First Amendment cases, where the facial-challenge bar is lower than it otherwise might be, the plaintiff [in a facial challenge] must show that "a substantial number of [the law's] applications are unconstitutional, judged in relation to the statute's plainly legitimate sweep."
🔮 Officers who violate the law may be criminally prosecuted by the State.
🔮 The standard for the granting of Pseudonym status can be found in Practice Book § 11–20A(h)(1) which provides in pertinent part: "Pseudonyms may be used in place of the name of a party or parties only with the prior approval of the judicial authority and only if the judicial authority concludes that such order is necessary to preserve an interest which is determined to override the public's interest in knowing the name of the party or parties.
🔮 It would hold up only if websites have an inherent expressive value that differs from the expressive value inherent in all books.
🔮 While any one of FirstBank's services to Epstein may be claimed to be "routine" (though in many instances even that is suspicious), together, the complaint alleges that FirstBank was deeply enmeshed in Epstein's misconduct for its own financial benefit….
🔮 We hold that some predicate crimes (like Bost's conviction for terroristic threats) demonstrate a prima facie risk of physical violence from misusing guns and that those convicted of such crimes may presumptively be disarmed based on those convictions alone….
🔮 However, when it came to Pride events, the newsroom was deviating from its typical editorial review process, and many reporters were beginning to go cover stories about Pride festivals as soon as they heard that the event was taking place—without discussing with the rest of the newsroom whether the story ought to be covered, whether it was duplicative of another story that had recently aired, or whether some unique aspect of the story could be explored in a way that highlighted the story's overall newsworthiness.
🔮 The Court will grant that motion as well, finding that Plaintiffs are likely to succeed not only on their due process claim, but also on their two First Amendment claims.
🔮 But if you submit exclusively to us before that, we will give you an answer within 14 days; and then if you'd like to have it published quickly, we can publish it in within a few months, if it's sufficiently clean and cite-checked by your research assistant.
🔮 Two NAMI supporters, whom we will call "June" and "Lynn," names we have randomly chosen in the interest of their privacy, were employees of a large health-insurance company and arrived early to set up a picnic area and booth to greet their participating coworkers and provide information about their employer.
Also by Eugene Volokh
Nothing else under this byline is closely related to this article, so these are simply their most recent.
All 143 articles by Eugene Volokh →

Topics

California Congress U.S. the Supremacy Clause the United States

Subjects

the United States GPE · 6× California GPE · 2× Congress ORG · 2× Daniel Collins PERSON · 1× Jacqueline Nguyen PERSON · 1× Mark Bennett PERSON · 1× Ninth Circuit Judge ORG · 1× State ORG · 1× U.S. GPE · 1× the United States's GPE · 1×

Narrative

So even if we were to read Johnson as carving out an exception to intergovernmental immunity for laws of general applicability that affect federal operations in incidental ways—an issue that we need not and do not resolve today—such a putative exception would not apply here because § 10 is neither generally applicable nor its effect on federal officers "incidental."
framing: assertive · carried by 1 article(s) · first seen 2026-10-15
🔮 Officers who violate the law may be criminally prosecuted by the State.

Claims (53 extracted, 7 hedged)

Section 10 [of the California "No Vigilantes Act"] requires any non-uniformed "federal law enforcement officer" operating in California, with narrow exceptions, to "visibly display identification" while performing federal law enforcement duties. asserted
Section → require → duties
Officers who violate the law may be criminally prosecuted by the State. uncertain
who → violate → State
We previously granted the United States's motion for an injunction pending appeal. asserted
We → grant → appeal
As before, we conclude that … § 10 of the No Vigilantes Act attempts [in violation of the Supremacy Clause] to directly regulate the United States in its performance of governmental functions, and Congress has not authorized such regulation. asserted
Congress → conclude → regulation
Indeed, we conclude that the United States is certain to succeed…. asserted
States → conclude → ?
"[U]nder the intergovernmental immunity component of the Supremacy Clause to the United States Constitution, states may not directly regulate the Federal Government's operations or property." uncertain
states → regulate → operations
"It is of the very essence of supremacy," the Supreme Court has emphasized, "to remove all obstacles to its action within its own sphere, and so to modify every power vested in subordinate governments, as to exempt its own operations from their own influence." asserted
Court → emphasize → influence
To that end, "states have no power" to "in any manner control[ ] the operations of the constitutional laws enacted by congress to carry into execution the powers vested in the general government." asserted
states → have → government
And "where 'Congress does not affirmatively declare its instrumentalities or property subject to regulation,' 'the federal function must be left free' of regulation" by the States. asserted
function → declare → States
Intergovernmental immunity "prohibit[s] state laws that either 'regulat[e] the United States directly or discriminat[e] against the Federal Government or those with whom it deals' (e.g., contractors)." asserted
it → prohibit[ → whom
A direct regulation is one that "lays hold of" federal officers "in their specific attempt to obey orders and requires qualifications in addition to those that the [federal] Government has pronounced sufficient." asserted
Government → lay → those
It imposes conditions upon "a function of government," and it regulates "the right to carry on the business" of the federal government. asserted
it → impose → government
Put another way, a direct regulation regulates the government qua government; it controls how the government conducts specifically governmental functions. asserted
government → put → functions
The Supremacy Clause prohibits States from directly regulating federal operations even when regulating state operations in the same manner…. asserted
Clause → prohibit → manner
"[E]ven the most unquestionable and most universally applicable of state laws, such as those concerning murder, will not be allowed to control the conduct of a marshal of the United States acting under and in pursuance of the laws of the United States." asserted
unquestionable → concern → States
And critically, "Supreme Court case law compels the rejection of a de minimis exception to the doctrine of intergovernmental immunity." asserted
law → compel → immunity
So "[a] state or local law that directly regulates the conduct of the federal government or discriminates against it is invalid, even if it is no more restrictive than federal law. asserted
it → regulate → law
In sum, if a state law directly regulates the governmental conduct of the United States without congressional authorization, it is void irrespective of whether the regulated activities are essential to federal functions or operations, and irrespective of the degree to which the state law interferes with such functions or operations…. asserted
law → regulate → functions
Section 10 of the No Vigilantes Act expressly applies to federal officers. asserted
Section → apply → officers
It controls the conduct of those federal officers in performing law enforcement operations. asserted
It → control → operations
Section 10 explicitly overrides the federal government's power to determine whether, how, and when to publicly identify its officers. asserted
Section → override → officers
And in so doing, it regulates the manner and conditions under which federal agents can enforce federal law. asserted
agents → do → law
Again, § 10 defines "law enforcement officer" as including "any federal law enforcement officer." asserted
§ → define → officer
And any non-uniformed federal law enforcement officer "operating in California" "shall visibly display identification that includes their agency and either a name or badge number or both name and badge number when performing their enforcement duties. asserted
that → operate → duties
These provisions "lay[ ] hold of" federal agencies and officers "in their specific attempt to obey orders and require[ ] qualifications in addition to those that the [federal] Government has pronounced sufficient." asserted
Government → lay → those
As a result, § 10 regulates the performance of "governmental action[s]" which are "carried on by the United States itself"—not merely "persons who [a]re acting for themselves and not for the United States." asserted
who → regulate → States
Indeed, it applies only to law enforcement agencies and their officers, including federal law enforcement agencies and federal law enforcement officers. asserted
it → apply → agencies
Section 10 thus directly regulates inherently sovereign functions. asserted
Section → regulate → functions
Because Congress has not authorized such legislation, it is barred by intergovernmental immunity. asserted
it → authorize → immunity
The United States has also shown that "no set of circumstances exists under which the Act would be valid." asserted
Act → show → which
Again, § 10 exclusively regulates quintessentially government conduct: law enforcement. asserted
§ → regulate → conduct
So as applied to federal agencies and federal officers carrying out their duties under federal authority, the statute is invalid in all applications. asserted
statute → apply → applications
The United States is therefore likely—indeed, certain—to succeed on the merits of its facial challenge to § 10's constitutionality…. asserted
States → succeed → constitutionality
California … advances its view that a state statute constitutes an impermissible direct regulation only when the law "impose[s] substantial burdens on federal operations." … asserted
law → advance → operations
The district court applied, and California urges us to adopt, the standard applicable to States' regulation of federal contractors and third-party employers—not the standard that governs direct regulation of the United States's governmental activities. asserted
that → apply → activities
"Private contractors do not stand on the same footing as the federal government, so states can impose many laws on federal contractors that they could not apply to the federal government itself." uncertain
they → stand → government
But "where, as here, the governmental action is carried on by the United States itself and Congress does not affirmatively declare its instrumentalities or property subject to regulation or taxation, the inherent freedom [from direct regulation] continues." asserted
freedom → carry → regulation
So the burden of the regulation on federal operations, whether substantial or otherwise, is irrelevant because, as discussed, there is no de minimis exception to the United States's immunity from direct regulation. asserted
burden → discuss → regulation
To be sure, the Supremacy Clause likely does not "bar[ ] all state regulation which may touch the activities of the Federal Government." uncertain
which → bar → Government
For example, in Johnson v. Maryland (1920), the Supreme Court suggested that "when the United States has not spoken," States might be able to impose on federal officers "general rules that might affect incidentally the mode of carrying out the[ir] employment—as, for instance, a statute or ordinance regulating the mode of turning at the corners of streets. uncertain
that → suggest → streets
…and 13 more, not listed.
💬Give feedback
🕘History 🎫Support