Ongoing court cases and litigation

State attorneys general play a vital role in bringing litigation that defends the rule of law, protects the rights of residents, and upholds state and federal statutes.  

This page tracks ongoing lawsuits and legal actions led or joined by state AGs against the Trump administration — on topics ranging from civil rights and consumer protection to environmental justice and challenges to federal overreach. Here you’ll find case summaries, court filings, and the latest developments in high-impact litigation that reflect the evolving responsibilities of state attorneys general in today’s legal and political environment. 

Click here to see a full view of the litigation led by Progressive State AGs:

State Attorney General Federal Litigation Tracker

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    • Jun 23, 2026
    • Executive Power
    • Military Occupation of US Cities
    • Immigration

    New York v. Department of Justice

    AG sues the U.S. Department of Justice in proactive defense of a slate of recently passed state laws that prohibit local, state, and federal law enforcement officers from concealing their identity with masks, requiring all officers to display clear identification, prohibiting local governments and law enforcement agencies from entering into agreements to operate as immigration officers or to detain people solely for federal civil immigration violations, and prohibiting the use of public subsidies for civil immigration detention facilities.
    Read Lawsuit
    • Jun 22, 2026
    • Executive Power
    • Military Occupation of US Cities
    • Immigration

    United States v. Russo

    The US Department of Justice sues the state of New York over recently passed state laws that prohibit local, state, and federal law enforcement officers from concealing their identity with masks while interacting with the public, requiring all officers to display clear identification, ensuring local law enforcement can remain focused on local community safety issues by prohibiting local governments and law enforcement agencies from entering into agreements to operate as immigration officers or to detain people solely for federal civil immigration violations, and prohibiting the use of public subsidies for civil immigration detention facilities.
    Read Lawsuit
    • Jun 11, 2026
    • Immigration
    • Executive Power
    • Military Occupation of US Cities

    United States v. Virginia

    The Department of Justice sues the state of Virginia for a state law prohibiting federal law enforcement from wearing facial coverings and working without visible identification.
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    • Apr 29, 2026
    • Military Occupation of US Cities

    United States v. New Jersey

    The Trump administration sues New Jersey for its "mask ban" prohibiting law enforcement from hiding their faces and identities while engaged in official duties.
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    • Mar 24, 2026
    • Military Occupation of US Cities
    • Immigration
    • Executive Power

    Minnesota v. Department of Justice

    AG sues the Departments of Justice and Homeland Security for access to evidence collected by the federal government in relation to the homicide of two Minnesotans by federal immigration agents during the "Operation Metro Surge" deployment of militarized immigration enforcement.
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    • Feb 23, 2026
    • Immigration
    • Executive Power
    • Military Occupation of US Cities

    Maryland v. Noem

    AG Brown sues the Trump administration to stop the Department of Homeland Security and ICE from converting a warehouse into a massive immigrant detention facility without proper oversight, reviews, or permits.
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    • Jan 24, 2026
    • Military Occupation of US Cities
    • Executive Power

    Minnesota Bureau of Criminal Apprehension v. Noem

    Minnesota AG and the Hennepin County Attorney sue the Department of Homeland Security to require federal authorities to preserve evidence in the investigation of the killing of legal observer Alex Pretti during anti-ICE protests.
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    • Jan 12, 2026
    • Immigration
    • Executive Power
    • Military Occupation of US Cities

    Minnesota v. Noem

    Minnesota AG sues the Trump administration over the surge of immigration enforcement personnel conducting militarized raids and illegal stops and arrests in the Twin Cities area.
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    • Jan 12, 2026
    • Immigration
    • Military Occupation of US Cities
    • Executive Power

    Illinois v. Department of Homeland Security

    Illinois AG sues the Trump administration for deploying immigration enforcement agents to engage in unconstitutional raids and indiscriminate violence against residents in Chicago and across Illinois.
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    • Nov 17, 2025
    • Military Occupation of US Cities
    • Immigration

    United States v. California

    The Trump administration sues California over its "mask ban", forbidding any law enforcement authorities from wearing masks or engaging in law enforcement activities without identifying themselves.
    Read Lawsuit