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 6, 2026
    • Democracy Protection/Voting Rights

    United States v. Fontes, Arizona Secretary of State

    The Trump administration sues the state of Arizona for refusing to hand over sensitive voter information to the federal government.
    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 16, 2025
    • Environment/Climate
    • Funding Freeze

    California v. Department of Transportation

    AGs sue the Department of Transportation for the indefinite suspension of $1.8 billion in electric vehicle charging infrastructure.
    Read Lawsuit
    • Dec 12, 2025
    • Immigration

    California v. Noem

    AGs sue the Trump administration for imposing a $100,000 supplemental fee on H-1B visa petitions.
    Read Lawsuit
    • Nov 25, 2025
    • Funding Freeze

    Washington v. United States Department of Housing and Urban Development

    AGs sue the Department of Housing and Urban Development for adopting new policies that limit access to housing funds for people who are transgender, struggling with mental illness or substance use disorder, or live in a jurisdiction with homelessness policy that the federal government disagrees with.
    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
    • Nov 3, 2025
    • Education

    Massachusetts v. Department of Education

    AGs sue the Department of Education to block a new rule that strips Public Service Loan Forgiveness eligibility from people whose work is disfavored by the Trump administration, including supporting immigrant rights, DEI, and gender-affirming care.
    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
    • Oct 16, 2025
    • Environment/Climate
    • Funding Freeze
    • Executive Power

    Maryland Clean Energy Center v. United States

    AGs sue the Trump administration in the Court of Federal claims for the illegal termination of competitive grants under the "Solar for All" zero-emissions technologies program.
    Read Lawsuit