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

Selected Filters:

    • 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.
    Read Lawsuit
    • 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.
    Read Lawsuit
    • 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
    • Oct 6, 2025
    • Military Occupation of US Cities
    • Executive Power

    Illinois v. Trump

    AG sues over the deployment of Illinois and Texas National Guard into Chicago for unlawful civilian law enforcement purposes.
    Read Lawsuit
    • Sep 28, 2025
    • Military Occupation of US Cities
    • Executive Power

    Oregon v. Trump

    Oregon AG sues to block the Trump administration's unlawful and unconstitutional deployment of the National Guard to engage in civilian law enforcement in Portland.
    Read Lawsuit
    • Sep 4, 2025
    • Executive Power
    • Military Occupation of US Cities

    District of Columbia v. Trump

    D.C. AG sues to stop the illegal deployment of the National Guard, arguing they are engaged in law enforcement activity in clear violation of the Posse Comitatus acts and the constitution.
    Read Lawsuit
    • Aug 15, 2025
    • Executive Power
    • Military Occupation of US Cities

    District of Columbia v. Trump

    D.C. AG sues the Trump administration and the Department of Justice over their takeover of the D.C. Metropolitan Police Department, in violation of the Home Rule Act.
    Read Lawsuit
    • Jun 9, 2025
    • Executive Power
    • Immigration
    • Military Occupation of US Cities

    Newsom v. Trump

    California AG and Governor sue the Trump administration for illegally deploying the California National Guard to Los Angeles during protests against Trump's immigration policy.
    Read Lawsuit