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:

    • Apr 3, 2026
    • Democracy Protection/Voting Rights
    • Executive Power

    California v. Trump

    AG coalition and Pennsylvania governor Shapiro sue to block President Trump’s mail-in voting executive order.
    Read Lawsuit
    • Mar 19, 2026
    • Petition for Review

    Massachusetts v. Environmental Protection Agency

    AG coalition (including the AG from the U.S. Virgin Islands), the Governor of Pennsylvania, and 10 cities and counties filed a petition for review challenging the U.S. Environmental Protection Agency’s (EPA) rescission of the Endangerment Finding, EPA’s formal acknowledgement that greenhouse gas emissions from motor vehicles contribute to air pollution that drives climate change and endangers public health and welfare; it has served as the legal basis under the Clean Air Act for limiting climate pollution from vehicles.
    Read Lawsuit
    • Mar 5, 2026
    • Executive Power
    • Consumer Protection

    Oregon v. Trump

    AG coalition plus the governors of Pennsylvania and Kentucky sue the Trump administration for imposing global tariffs that do not fall within the limited circumstances required by the relevant statute.
    Read Lawsuit
    • Dec 30, 2025
    • Funding Freeze
    • Education

    Maryland v. Department of Education

    AGs sue to stop the Department of Education from abruptly terminating funding for community school programs.
    Read Lawsuit
    • Dec 22, 2025
    • Consumer Protection
    • Executive Power

    New York v. Vought

    AGs sue to stop the Trump administration from completely defunding the Consumer Financial Protection Bureau.
    Read Lawsuit
    • Dec 12, 2025
    • Immigration

    California v. Mullin

    AGs sue the Trump administration for imposing a $100,000 supplemental fee on H-1B visa petitions.
    Read Lawsuit
    • Nov 26, 2025
    • Funding Freeze

    New York v. Rollins

    AGs sue the Department of Agriculture for issuing new SNAP guidance that illegally restricts program eligibility for lawful permanent residents.
    Read Lawsuit
    • Nov 4, 2025
    • Executive Power
    • Funding Freeze
    • Immigration

    Michigan v. Noem

    AGs sue the Department of Homeland Security and FEMA for imposing unlawful conditions on grants and imposing new barriers to states accessing emergency management dollars, disaster relief, and funds for police and emergency response personnel.
    Read Lawsuit
    • Oct 28, 2025
    • Executive Power
    • Funding Freeze

    Massachusetts v. United States Department of Agriculture

    AGs sue the Department of Agriculture for its unlawful refusal to fund SNAP benefits during the government shutdown.
    Read Lawsuit
    • Oct 16, 2025
    • Environment/Climate
    • Executive Power
    • Funding Freeze

    Arizona v. EPA

    AGs sue the Environmental Protection Agency over the unilateral and illegal termination of the "Solar for All" program designed to bring low-cost solar energy to over 900,000 households in low-income and disadvantaged communities.
    Read Lawsuit