The Ninth Circuit Court of Appeals issued a stay, effectively suspending a lower court's injunction that had mandated President Trump reinstate California's gubernatorial control over National Guard troops; these troops had been federalized and deployed in response to demonstrations triggered by controversial immigration enforcement actions in Los Angeles.

Prior to this, Judge Charles Breyer of the U.S. District Court had adjudicated the deployment unlawful, asserting its contravention of the Tenth Amendment and transgression of the juridical limits of presidential authority, a decision Governor Gavin Newsom of California lauded; conversely, the White House excoriated Judge Breyer's injunction as an unprecedented and impermissible arrogation of power; furthermore, the judicial interdiction pertained exclusively to the National Guard, leaving unaffected the deployment of reservists; Newsom, antecedently, initiated litigation to forestall the National Guard activation, positing its potential to exacerbate extant tensions and foment societal unrest, the deployment having been instigated pursuant to Title 10, endowing the President with the prerogative to federalize the National Guard under exigent circumstances.