A federal judge has dismissed the Trump administration’s lawsuit challenging Los Angeles’ sanctuary city policy, delivering a significant legal setback to the administration’s broader effort to limit local protections for undocumented immigrants and expand federal immigration enforcement authority.
The ruling, issued by Fernando Olguin, rejected arguments that Los Angeles’ ordinance unlawfully interferes with federal immigration powers and reaffirmed the city’s authority to determine how municipal resources are used.
Los Angeles City Attorney Hydee Feldstein Soto called the decision “a legal victory” for the city.
“This order reinforces the well-established principle that local governments have the authority to decide how to use their personnel and resources,” Feldstein Soto said following the ruling.
The legal challenge centered on Los Angeles’ “Prohibition of the Use of City Resources for Federal Immigration Enforcement” ordinance, commonly referred to as the city’s sanctuary city law. Signed by Karen Bass in December 2024, the measure restricts city personnel and resources from being used to investigate an individual’s immigration status or provide city-held information for determining citizenship status.
City officials have argued that the policy was designed to promote public safety by encouraging crime victims and witnesses to engage with law enforcement without fear of immigration consequences.
The Trump administration filed suit in June 2025, arguing that the ordinance unlawfully discriminated against the federal government and conflicted with federal immigration law under the legal principle known as the intergovernmental immunities doctrine.
In his ruling, Olguin found that the administration failed to establish a plausible violation of that doctrine because the ordinance regulates the conduct of city employees rather than restricting the federal government itself.
The court also rejected arguments that federal immigration law expressly preempted the city’s policy.
According to the ruling, the ordinance prevents city officials from affirmatively asking about immigration status but does not prohibit officials from maintaining or sharing information they already possess with federal authorities.
The distinction may prove legally significant because federal preemption challenges generally require a direct conflict between local and federal law.
Although the case was dismissed, the administration was granted an opportunity to amend its complaint and correct identified deficiencies by July 3, 2026.
The court also dismissed claims against individual city officials, including Mayor Bass, with prejudice, meaning those claims cannot be refiled.
The lawsuit is one of several recent legal actions brought by the administration as part of a wider campaign targeting sanctuary policies across the United States. Similar legal challenges against jurisdictions including Boston and Illinois have also faced setbacks.
The ruling may carry implications beyond Los Angeles, particularly as courts continue to address the constitutional boundaries between federal immigration authority and local government autonomy.
Legal observers note that the dispute highlights a recurring question at the center of immigration litigation: whether federal power over immigration extends to compelling state and local governments to participate in enforcement efforts.
