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 26, 2025
    • Education
    • LGBTQ Rights
    • Reproductive Rights

    Washington v. Department of Health and Human Services

    AGs sue the Department of Health and Human Services over the federal government's plan to force states to rewrite sexual education curriculum in a way that erases transgender, gender-diverse youth, and youth with differences in sex development.
    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 state from using Medicaid dollars to pay for healthcare services provided at Planned Parenthood health centers.
    Read Lawsuit
    • Jul 21, 2025
    • Immigration
    • Executive Power
    • Privacy/Technology

    New York v. Department of Justice

    AGs sue to block restrictions, issued without notice, requiring immigration status verification before public services like Head Start, Meals on Wheels, and domestic violence shelter can be provided to individuals.
    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
    • Jul 1, 2025
    • Healthcare
    • Executive Power
    • Funding Freeze
    • Privacy/Technology

    California v. Health and Human Services

    AGs sue the Department of Health and Human Services because it provided unfettered access to individual, confidential personal health data to the Department of Homeland Security for immigration enforcement purposes.
    Read Lawsuit
    • May 5, 2025
    • Healthcare
    • Executive Power

    New York v. Kennedy, Department of Health and Human Services

    AGs sue to reverse Trump administration's mass termination of 10,000 employees and shuttering of dozens of agencies.
    Read Lawsuit
    • Apr 16, 2025
    • Education
    • LGBTQ Rights

    United States v. Maine

    Trump administration sues Maine, alleging violations of Title IX because the state allows transgender students to play sports on teams that match students' gender.
    Read Lawsuit
    • Apr 4, 2025
    • Healthcare
    • Executive Power

    Massachusetts v. Kennedy, Department of Health and Human Services

    AGs sue to reinstate the National Institutes of Health grants and restore their grant application process.
    Read Lawsuit
    • Apr 1, 2025
    • Funding Freeze
    • Executive Power
    • Healthcare

    Colorado v. Department of Health and Human Services

    AGs sue to block the Department of Health and Human Services' abrupt cancellation of $11 billion in critical public health funding.
    Read Lawsuit
    • Mar 6, 2025
    • Executive Power
    • Labor Rights

    Maryland v. Department of Agriculture

    AGs sue to stop Trump administration's mass firing of probationary workers and Reduction in Force orders.
    Read Lawsuit