A federal appeals court on 14 October 2026 blocked California from enforcing its immigration agent identification requirement against federal officers, removing a state-mandated safeguard intended to help residents identify agents during enforcement encounters.
The US Court of Appeals for the 9th Circuit ruled that Section 10 of California's 2025 No Vigilantes Act violates the Supremacy Clause of the US Constitution, which gives federal law priority when it clashes with state rules. The three-judge panel voted unanimously and reversed a lower court that had refused to issue a preliminary injunction against the measure.