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:
All Filters
-
- Mar 11, 2026
- Education
- Funding Freeze
Massachusetts v. Department of Education
AG coalition sues the Trump Administration for demanding that higher education institutions provide new data via a recently added component to the Integrated Postsecondary Education System that would leave institutions vulnerable to inadvertent errors and unreliable data and could lead to costly penalties and baseless investigations into their practices, and that it jeopardizes student privacy by requesting in-depth information about individual students.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 -
- Feb 18, 2026
- Funding Freeze
California v. Wright
AGs sue the Trump administration for terminating congressionally mandated funding for key energy and infrastructure programs.Read Lawsuit -
- Feb 11, 2026
- Funding Freeze
- Healthcare
Illinois v. Vought
AGs sue the Trump administration for illegally planning to cut more than $600 million in Centers for Disease Control and Prevention (CDC) grants that fund essential public health infrastructure, as well as testing and treatment for lethal diseases like HIV.Read Lawsuit -
- Jan 13, 2026
- LGBTQ Rights
- Funding Freeze
- DEI/Civil Rights
New York v. Department of Health and Human Services
AGs sue the Trump administration for unlawfully conditioning hundreds of billions of dollars in federal funding on states’ agreement to discriminate against transgender people.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 -
- Jan 8, 2026
- Funding Freeze
- Healthcare
- Executive Power
New York v. Administration for Children and Families
AGs sue the Trump administration for unlawfully freezing $10 billion in federal funds designated for food, housing, and child care as punishment for the states’ political leadership.Read Lawsuit -
- Dec 23, 2025
- LGBTQ Rights
Oregon v. Kennedy
AGs filed a complaint challenging the HHS declaration that claims gender-affirming care fails to meet professionally recognized standards of care and therefore HHS can disqualify doctors or hospitals providing such care from Medicare and Medicaid.Read Lawsuit -
- Dec 22, 2025
- Immigration
United States v. Illinois
The Trump administration sues the state of Illinois over state laws that allow for civil liability and punitive damages against immigration enforcement agents when they violate individuals' constitutional rights while engaged in federal immigration enforcement and bans "civil arrests" within 1,000 feet of a courthouse.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