A federal judge has blocked Justice Department subpoenas targeting Minnesota Gov. Tim Walz and other state officials in an immigration enforcement investigation, finding the subpoenas had "extremely weak to nonexistent" connections to any possible criminal violation and ruling that federal prosecutors were not conducting a legitimate criminal investigation.
U.S. District Judge Patrick Schiltz determined that the subpoenas, served in January, were an attempt to coerce Minnesota officials into helping enforce civil immigration law and to harass and retaliate against them for refusing to do so. The judge said the Justice Department had struggled "without success" to identify a single plausible investigatory justification for the subpoenas and that the evidence they were issued for unlawful reasons was overwhelming.
The Investigation and Subpoenas
The subpoenas sought records from the offices of Walz, Attorney General Keith Ellison, Minneapolis Mayor Jacob Frey, St. Paul Mayor Kaohly Her and officials in Ramsey and Hennepin counties. They were part of an investigation into whether Walz and other officials obstructed or impeded law enforcement actions. Judge Schiltz noted that the materials sought largely or entirely related to constitutionally protected conduct and emphasized that Minnesota has the legal right not to devote its resources to enforcing federal immigration law.
The Justice Department said in a statement that it "takes the unlawful obstruction of federal law enforcement operations extremely seriously and will continue to act in full compliance with the law to investigate these matters."
Political Clash Over Federal Immigration Enforcement
The ruling came amid broader tensions between the Trump administration and Minnesota's Democratic leaders that escalated in January after federal immigration officers clashed with protesters in the Minneapolis-St. Paul area, especially after officers' fatal shootings of Renee Good and Alex Pretti. President Donald Trump threatened to invoke the Insurrection Act to quell protests and accused Walz, who was Democratic presidential nominee Kamala Harris' running mate in 2024, and others of encouraging protesters to disrupt Immigration and Customs Enforcement activity.
Walz called the ruling "a victory for the rule of law and our democracy." He said, "The U.S. Justice Department is pursuing criminal investigations into the President's political opponents. This case was just one example of that, but we are seeing daily reminders of this administration's lawlessness — in Minnesota and around the country. We all must continue to seek justice and uphold the rule of law."
Ellison said "it should disturb every American that Donald Trump is weaponizing the criminal justice system against people he disagrees with." Her said the subpoenas were "a politically motivated retaliation against our city for lawfully standing up to ICE and fighting for our residents." Frey said the investigation was "never about justice, law, and order, but the absence of it," and added, "Subpoenaing political opponents because they spoke on behalf of their constituents violates the core tenets of our democracy and human decency." He also said criticizing government action is not a crime and that elected officials have both the right and the responsibility to speak honestly about how government decisions affect the people they serve.
Broader Legal Context
The case was one of several recent legal setbacks for the Trump administration, including dismissed indictments against former FBI Director James Comey and New York Attorney General Letitia James and repeated grand jury refusals to return indictments sought by the Justice Department. Vice President JD Vance has separately called on the Justice Department to investigate Walz and Ellison over allegations they failed to stop widespread social services fraud, though the department has not said whether it will open an investigation. Walz and Ellison have described those allegations as politically motivated and defended their efforts to combat fraud in Minnesota.
Hennepin County Attorney Mary Moriarty in March sued the administration for access to evidence in the Good and Pretti killings, accusing the administration of withholding evidence from state investigators. Moriarty also has pursued criminal charges against ICE officers in two other incidents, including the nonfatal shooting of a Venezuelan man, and says her office is investigating several other cases as well.
Why This Matters:
This ruling highlights fundamental tensions over federalism and immigration enforcement authority. While the judge found the Justice Department's subpoenas lacked legitimate investigatory purpose, the underlying question of whether state officials can actively impede federal immigration operations remains unresolved. The decision affirms that states cannot be compelled to use their resources for federal immigration enforcement, but it does not address whether state officials may lawfully obstruct federal officers executing their duties. The case also underscores concerns about the politicization of criminal investigations on both sides, with Minnesota officials facing separate fraud allegations while simultaneously accusing federal prosecutors of partisan motives. The ongoing criminal investigations by local prosecutors into federal immigration officers further complicate cooperative law enforcement relationships at a time when border security and immigration enforcement remain critical national priorities.