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:

    • 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
    • Jul 29, 2025
    • Healthcare
    • Reproductive Rights

    California v. Department of Health and Human Services

    AGs sue to block the unconstitutional "Defund Provision" of the 2025 reconciliation law that forbids states from using Medicaid dollars to pay for healthcare services provided at Planned Parenthood health centers.
    Read Lawsuit
    • Jul 17, 2025
    • Healthcare

    California v. Centers for Medicare and Medicaid Services

    AGs sue to block new Trump administration rules governing the Affordable Care Act that could cost up to 1.8 million people their health insurance.
    Read Lawsuit
    • Apr 16, 2025
    • Executive Power

    California v. Trump

    California AG Bonta sues the Trump administration over tariff regime implemented under emergency economic powers.
    Read Lawsuit
    • Mar 19, 2025
    • Funding Freeze
    • Executive Power
    • Environment/Climate

    California Infrastructure Bank v. Citibank, EPA

    AGs sue Citibank and the Environmental Protection Agency for the unlawful termination and claw-back of billions of dollars in funds to support organizations working on clean energy.
    Read Lawsuit