Federal Judge Dismisses Trump Administration’s Challenge to New York Courthouse Immigration Policy

A federal judge has dismissed a lawsuit filed by the Trump administration challenging New York state policies that prevent federal immigration officials from arresting individuals at state courthouses without judicial warrants.

U.S. District Judge Mae D’Agostino ruled late Monday that New York’s decision to limit cooperation with federal immigration enforcement efforts is protected by the 10th Amendment, which establishes boundaries on federal government authority over states.

The lawsuit targeted New York’s 2020 Protect Our Courts Act, which prohibits Immigration and Customs Enforcement (ICE) agents from arresting people entering, attending, or leaving state courthouses unless they possess a warrant signed by a judge. The law was enacted in response to increased immigration enforcement actions at courthouses during President Donald Trump’s administration.

In her decision, Judge D’Agostino emphasized that the federal government cannot compel states to participate in federal immigration enforcement. “Fundamentally, the United States fails to identify any federal law mandating that state and local officials generally assist or cooperate with federal immigration enforcement efforts. Nor could it,” she wrote in her ruling.

The judge further explained that no such federal laws exist “because the Tenth Amendment prohibits Congress from conscripting state and local officials and resources to assist with federal regulatory schemes, like immigration enforcement.”

The Department of Justice had argued that New York’s law and two related executive orders were unconstitutional because they obstructed federal immigration authorities from carrying out their duties. A Justice Department spokesperson responded to the ruling by stating that “President Trump’s immigration enforcement agenda is a top national security and public safety priority that this Department of Justice will continue to vigorously defend whenever challenged in court.”

New York Attorney General Letitia James, whose office defended the state policy, celebrated the decision as a victory for immigrant communities. “Everyone deserves to seek justice without fear,” James said in a statement. “This ruling ensures that anyone can use New York’s state courts without being targeted by federal authorities.”

The case represents one of several legal confrontations between the Trump administration and state governments over immigration enforcement policies. These disputes highlight the ongoing tension between federal immigration priorities and state sovereignty concerns.

Immigration advocates have long argued that courthouse arrests by federal agents discourage undocumented immigrants from participating in the justice system, whether as crime victims, witnesses, or defendants in non-immigration related matters. They contend such enforcement practices ultimately undermine public safety and the functioning of the court system.

The New York law does not apply to federal immigration courts, which operate separately from state judicial systems. It specifically targets civil immigration enforcement actions, which involve administrative rather than criminal proceedings in most cases.

The ruling comes amid broader national debates about the relationship between federal and state authorities in immigration enforcement. Several states and municipalities have enacted various forms of “sanctuary” policies limiting cooperation with federal immigration authorities, while others have moved to strengthen partnerships with agencies like ICE.

Legal experts note that the decision reinforces the principle that while the federal government maintains exclusive authority over immigration law, it cannot force states to participate in enforcing those laws, a doctrine sometimes referred to as the “anti-commandeering” principle under the 10th Amendment.