Supreme Court Term 2025-2026
We’re breaking down the cases we've asked the court to consider this term.
Latest Case Updates
Updated September 10, 2026
Ongoing
Updated September 8, 2026
Ongoing
Updated August 31, 2026
Ongoing
Updated August 31, 2026
Featured
Florida
Sep 2026
National Security
+2 Issues
CAIR-Foundation, Inc and CAIR Florida, Inc. v. DeSantis et al.
The ACLU, the ACLU of Florida, the Southern Poverty Law Center, and their partners represent CAIR and CAIR-Florida in two federal lawsuits challenging Governor DeSantis’s unconstitutional and baseless designation of the nonprofits as “terrorist.” The lawsuits allege violations of CAIR and CAIR-Florida’s rights under the First Amendment and the due process clause of the Fourteenth Amendment.
Massachusetts
Sep 2026
Voting Rights
League of Women Voters of Massachusetts v. Trump
On March 31, 2026, President Trump issued a sweeping Executive Order titled "Ensuring Citizen Verification and Integrity in Federal Elections," seeking once again to seize control of election administration from Congress and the states. The Order directs federal agencies to compile lists of U.S. citizens and transmit them to states before every election, directs the U.S. Postal Service -- an independent agency established by Congress -- to create a list of "approved" mail voters, and instructs USPS to refuse to deliver ballots from voters not on that federally created list. If implemented, the Order would threaten the ability of millions of eligible citizens to cast their ballots, particularly military members, overseas citizens, the elderly, recently naturalized citizens, and voters with disabilities who rely on mail voting.
Court Case
Sep 2026
National Security
Human Rights
FOIA Case Seeking the Trump Administration’s Legal Justification for Deadly Boat Strikes
The Department of Justice’s Office of Legal Counsel (“OLC”) authored a legal opinion that reportedly claims to justify the Trump administration’s illegal lethal strikes on civilians in boats in the Caribbean Sea and eastern Pacific Ocean. Media reports indicate that, in addition to claiming that the strikes are lawful acts in an alleged “armed conflict” with unspecified drug cartels, the OLC opinion also purports to immunize personnel who authorized or took part in the strikes from future criminal prosecution. Because the public deserves to know how our government is justifying these illegal strikes, and why they think the people who carried them out should not be held accountable, the ACLU is seeking immediate release of the OLC legal opinion and related documents pursuant to the Freedom of Information Act.
Oregon Supreme Court
Aug 2026
LGBTQ Rights
Prisoners' Rights
Zyst v. Miller
Following the Oregon Department of Corrections’ unconstitutional treatment of a transgender prisoner, a habeas court ordered her removal from segregated housing, an individualized gender-affirming care assessment, a psychiatric evaluation, and identification of an appropriate cellmate. However, the Oregon Court of Appeals reversed the psychiatric-evaluation and cellmate orders, finding them “too attenuated” to qualify as habeas relief. The ACLU’s State Supreme Court Initiative, alongside the ACLU of Oregon, joined an amicus brief by the law firm Sugerman Dahab arguing that habeas courts have broad discretion to remedy violations and resulting harms. The brief explains that the Court of Appeals’ “close connection” test unduly constricts habeas relief, and which should be construed to encompass not only the need to halt ongoing constitutional violations, but also the need to mitigate various harms that may arise from those violations.
Arizona
Jul 2026
Prisoners' Rights
Jensen v. Thornell
UPDATE: On July 17, 2026, U.S. District Judge Roslyn O. Silver issued an order formally appointing a receiver to assume control and management of health care provided to more than 25,000 people incarcerated in Arizona Department of Corrections, Rehabilitation, and Reentry (ADCRR) prisons, in a long-running lawsuit against the state prison system brought by the Prison Law Office, the American Civil Liberties Union (ACLU), ACLU of Arizona, and Disability Rights Arizona. More details here.
New Hampshire
Jul 2026
Voting Rights
Coalition for Open Democracy v. Scanlan
This lawsuit challenges HB 1569, a new law that will make New Hampshire the only state to require every person to produce documentary proof of citizenship when they register to vote for both state and federal elections. It also challenges HB 1569’s elimination a preexisting protection for voters—namely, an affidavit option that allowed voters who faced surprise challenges to their eligibility at the polls to swear to their qualifications and cast a ballot. Accordingly, HB 1569 violates the First and Fourteenth Amendments of the U.S. Constitution by placing substantial burdens on New Hampshirites at all stages of the voting process, and will arbitrarily disenfranchise hundreds, if not thousands of qualified voters.
U.S. Supreme Court
May 2026
Voting Rights
Racial Justice
Allen v. Milligan
Whether Alabama’s congressional districts violate Section 2 of the Voting Rights Act because they discriminate against Black voters. We succeeded in winning a new map for 2024 elections which, for the first time, has two congressional district that provide Black voters a fair opportunity to elect candidates of their choosing despite multiple attempts by Alabama to stop us at the Supreme Court. Despite this win, Alabama is still defending its discriminatory map, and a trial was held in February 2025 to determine the map for the rest of the decade.
In May 2025, a federal court ruled that Alabama's 2023 congressional map both violates Section 2 of the Voting Rights Act and was enacted by the Alabama Legislature with racially discriminatory intent.
U.S. Supreme Court
Apr 2026
Voting Rights
Louisiana v. Callais (Callais v. Landry)
Whether the congressional map Louisiana adopted to cure a Voting Rights Act violation in Robinson v. Ardoin is itself unlawful as a gerrymander.
Tennessee Supreme Court
Apr 2026
Capital Punishment
Tony Von Carruthers v. State of Tennessee
Tennessee plans to execute Tony Carruthers on May 21 even though they refuse to run a simple fingerprint comparison and DNA testing that could prove what Tony has been arguing for 30 years - that he is innocent of this crime and that Tennessee convicted and sentenced the wrong man to death.
All Cases
1,750 Court Cases
Tennessee
Feb 2026
Religious Liberty
Wilberforce Academy of Knoxville v. Knox County Board of Education
ACLU, ACLU of Tennessee, and partners are representing six Knox County taxpayers dedicated to supporting public education and the separation of church and state who oppose Wilberforce Academy’s effort to force the county to authorize and fund it as a religious public charter school. The taxpayers, public school parents and faith and community leaders, object to their tax dollars funding a public charter school that will indoctrinate students into one religion, in violation of Tennessee and federal law and our nation’s longstanding commitment to the separation of church and state. They want to ensure that public schools remain secular and open to all.
Explore case
Tennessee
Feb 2026
Religious Liberty
Wilberforce Academy of Knoxville v. Knox County Board of Education
ACLU, ACLU of Tennessee, and partners are representing six Knox County taxpayers dedicated to supporting public education and the separation of church and state who oppose Wilberforce Academy’s effort to force the county to authorize and fund it as a religious public charter school. The taxpayers, public school parents and faith and community leaders, object to their tax dollars funding a public charter school that will indoctrinate students into one religion, in violation of Tennessee and federal law and our nation’s longstanding commitment to the separation of church and state. They want to ensure that public schools remain secular and open to all.
California
Jan 2026
Free Speech
Privacy & Technology
Doe v. DHS
On February 2, 2026, the ACLU, ACLU of Northern California, and the ACLU of Pennsylvania filed a motion in federal court to quash a Department of Homeland Security (“DHS”) administrative subpoena seeking Google subscriber records about our client, solely because he engaged in constitutionally protected speech criticizing DHS conduct.
Explore case
California
Jan 2026
Free Speech
Privacy & Technology
Doe v. DHS
On February 2, 2026, the ACLU, ACLU of Northern California, and the ACLU of Pennsylvania filed a motion in federal court to quash a Department of Homeland Security (“DHS”) administrative subpoena seeking Google subscriber records about our client, solely because he engaged in constitutionally protected speech criticizing DHS conduct.
Massachusetts
Jan 2026
National Security
Human Rights
Burnley v. U.S.: Demanding Accountability on Caribbean Boat Strikes
On October 14, 2025, the United States military carried out an illegal missile strike that killed Chad Joseph and Rishi Samaroo, two Trinidadian men who were traveling by boat from Venezuela to their homes in Las Cuevas, Trinidad and Tobago. The American Civil Liberties Union, the Center for Constitutional Rights, the American Civil Liberties Union of Massachusetts, and Professor Jonathan Hafetz of Seton Hall Law School filed suit on behalf of Lenore Burnley, Mr. Joseph’s mother, and Sallycar Korasingh, Mr. Samaroo’s sister, seeking redress and accountability for these extrajudicial killings pursuant to the Death on the High Seas Act and the Alien Tort Statute.
Explore case
Massachusetts
Jan 2026
National Security
Human Rights
Burnley v. U.S.: Demanding Accountability on Caribbean Boat Strikes
On October 14, 2025, the United States military carried out an illegal missile strike that killed Chad Joseph and Rishi Samaroo, two Trinidadian men who were traveling by boat from Venezuela to their homes in Las Cuevas, Trinidad and Tobago. The American Civil Liberties Union, the Center for Constitutional Rights, the American Civil Liberties Union of Massachusetts, and Professor Jonathan Hafetz of Seton Hall Law School filed suit on behalf of Lenore Burnley, Mr. Joseph’s mother, and Sallycar Korasingh, Mr. Samaroo’s sister, seeking redress and accountability for these extrajudicial killings pursuant to the Death on the High Seas Act and the Alien Tort Statute.
Minnesota
Jan 2026
Immigrants' Rights
Tincher v. Noem et al.
Explore case
Mississippi
Jan 2026
Criminal Law Reform
American Civil Liberties Union of Mississippi et al. v. Rankin County District Attorney's Office
In 2023, public reporting revealed that a group of sheriff’s deputies in Rankin County, Mississippi, had been terrorizing the County’s residents for nearly two decades. The deputies, who called themselves the “Goon Squad,” used torture, violence, and other abusive practices to coerce confessions and extract or manufacture evidence. The Rankin County District Attorney’s Office (RCDAO), in turn, used the Goon Squad to prosecute people. Seeking to understand whether the RCDAO has taken any actions to address the Goon Squad’s misconduct since it became public, the ACLU of Mississippi and the Center for Constitutional Rights filed a public records request with the RCDAO. But the RCDAO refused to produce any documents other than a self-serving press statement. Accordingly, the ACLU’s State Supreme Court Initiative, along with the ACLU of Mississippi and the Center for Constitutional Rights, filed suit arguing that the RCDAO’s failure to produce responsive records violates the Mississippi Public Records Act.
Explore case
Mississippi
Jan 2026
Criminal Law Reform
American Civil Liberties Union of Mississippi et al. v. Rankin County District Attorney's Office
In 2023, public reporting revealed that a group of sheriff’s deputies in Rankin County, Mississippi, had been terrorizing the County’s residents for nearly two decades. The deputies, who called themselves the “Goon Squad,” used torture, violence, and other abusive practices to coerce confessions and extract or manufacture evidence. The Rankin County District Attorney’s Office (RCDAO), in turn, used the Goon Squad to prosecute people. Seeking to understand whether the RCDAO has taken any actions to address the Goon Squad’s misconduct since it became public, the ACLU of Mississippi and the Center for Constitutional Rights filed a public records request with the RCDAO. But the RCDAO refused to produce any documents other than a self-serving press statement. Accordingly, the ACLU’s State Supreme Court Initiative, along with the ACLU of Mississippi and the Center for Constitutional Rights, filed suit arguing that the RCDAO’s failure to produce responsive records violates the Mississippi Public Records Act.