Supreme Court Term 2025-2026
We’re breaking down the cases we've asked the court to consider this term.
Latest Case Updates
Ongoing
Updated March 16, 2026
Ongoing
Updated March 12, 2026
Ongoing
Updated February 25, 2026
Ongoing
Updated February 18, 2026
Featured
Massachusetts
Apr 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.
U.S. Supreme Court
Feb 2026
Immigrants' Rights
Barbara v. Donald J. Trump
President Trump is attempting to undermine the promise of birthright citizenship to children born on U.S. soil. But the ACLU and partners are fighting to protect the rights of citizens that are plainly stated in the Constitution, federal statute, and reaffirmed by the Supreme Court for more than a century. We’re arguing against the Trump administration in the Supreme Court and are confident we will win.
Missouri
Feb 2026
Voting Rights
Wise v. Missouri
In unprecedented fashion, the State of Missouri has redrawn the district lines used for electing members of Congress for a second time this decade. These new district lines are gerrymandered and will harm political representation for all Missourians, particularly Black residents in Kansas City, who have been divided along racial lines.
Mississippi
Dec 2025
Voting Rights
White v. Mississippi State Board of Elections
District lines used to elect Mississippi’s Supreme Court have gone unchanged for more than 35 years. We’re suing because the current lines crack the Mississippi Delta and dilute the voting strength of Black Mississippians in state Supreme Court elections, in violation of the Voting Rights Act.
Court Case
Dec 2025
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.
U.S. Supreme Court
Nov 2025
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.
Washington, D.C.
Oct 2025
Voting Rights
League of Women Voters Education Fund v. Trump
On March 25, 2025, in a sweeping and unprecedented Executive Order, President Trump attempted to usurp the power to regulate federal elections from Congress and the States. Among other things, the Executive Order directs the Election Assistance Commission—an agency that Congress specifically established to be bipartisan and independent—to require voters to show a passport or other citizenship documentation in order to register to vote in federal elections. If implemented, the Executive Order would threaten the ability of millions of eligible Americans to register and vote and upend the administration of federal elections.
On behalf of leading voter registration organizations and advocacy organizations, the ACLU and co-counsel filed a lawsuit to block the Executive Order as an unconstitutional power grab.
U.S. Supreme Court
Oct 2025
Voting Rights
State Board of Election Commissioners v. Mississippi State Conference of the NAACP
Mississippi has a growing Black population, which is already the largest Black population percentage of any state in the country. Yet. Black Mississippians continue to be significantly under-represented in the state legislature, as Mississippi’s latest districting maps fail to reflect the reality of the state’s changing demographics. During the 2022 redistricting process, the Mississippi legislature refused to create any new districts where Black voters have a chance to elect their preferred representative. The current district lines therefore dilute the voting power of Black Mississippians and continue to deprive them of political representation that is responsive to their needs and concerns, including severe disparities in education and healthcare.
U.S. Supreme Court
Oct 2025
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.
All Cases
1,690 Court Cases
U.S. Supreme Court
Jun 2025
Voting Rights
Republican National Committee v. Genser
Voters in Butler County, Pennsylvania made a mistake in voting their mail ballots in the April 2024 primary election, forgetting to use the required secrecy envelope. Because their mail ballots could not be counted, they went to the polls in Election Day and voted provisional ballots. The County later determined that it would not count their provisional ballots, and the voter’s appealed, arguing that Pennsylvania law requires that when an eligible voter attempts to vote by mail but the mail ballot is rendered void due to some defect like lacking a secrecy envelope, the eligible voter may cast a provisional ballot and have that ballot counted notwithstanding the failed attempt to vote by mail.
Explore case
U.S. Supreme Court
Jun 2025
Voting Rights
Republican National Committee v. Genser
Voters in Butler County, Pennsylvania made a mistake in voting their mail ballots in the April 2024 primary election, forgetting to use the required secrecy envelope. Because their mail ballots could not be counted, they went to the polls in Election Day and voted provisional ballots. The County later determined that it would not count their provisional ballots, and the voter’s appealed, arguing that Pennsylvania law requires that when an eligible voter attempts to vote by mail but the mail ballot is rendered void due to some defect like lacking a secrecy envelope, the eligible voter may cast a provisional ballot and have that ballot counted notwithstanding the failed attempt to vote by mail.
Florida
May 2025
Free Speech
LGBTQ Rights
HM Florida-ORL, LLC v. Griffin
On January 24, 2024, the ACLU and ACLU of Florida filed an amicus brief with the U.S. Court of Appeals for the Eleventh Circuit supporting HM Florida-ORL, which operates the restaurant and bar Hamburger Mary’s in Orlando, in its lawsuit alleging that a Florida law infringes upon minors’ First Amendment rights by prohibiting them from attending drag performances.
Explore case
Florida
May 2025
Free Speech
LGBTQ Rights
HM Florida-ORL, LLC v. Griffin
On January 24, 2024, the ACLU and ACLU of Florida filed an amicus brief with the U.S. Court of Appeals for the Eleventh Circuit supporting HM Florida-ORL, which operates the restaurant and bar Hamburger Mary’s in Orlando, in its lawsuit alleging that a Florida law infringes upon minors’ First Amendment rights by prohibiting them from attending drag performances.
Tennessee
May 2025
Reproductive Freedom
Catholic Medical Association v. U.S. Department of Health and Human Services et al.
On behalf of Doctors for America, the ACLU and several partner organizations are intervening to vigorously defend pregnant patients' right to receive, and for physicians to provide, health- and life-saving abortion care under the Emergency Medical Treatment and Labor Act (EMTALA). This federal law has required hospitals with emergency departments to provide stabilizing treatment, including abortion, to patients experiencing medical emergencies for nearly four decades.
Explore case
Tennessee
May 2025
Reproductive Freedom
Catholic Medical Association v. U.S. Department of Health and Human Services et al.
On behalf of Doctors for America, the ACLU and several partner organizations are intervening to vigorously defend pregnant patients' right to receive, and for physicians to provide, health- and life-saving abortion care under the Emergency Medical Treatment and Labor Act (EMTALA). This federal law has required hospitals with emergency departments to provide stabilizing treatment, including abortion, to patients experiencing medical emergencies for nearly four decades.
Florida
May 2025
Immigrants' Rights
Peter Sean Brown v. Richard Ramsay
The American Civil Liberties Union, ACLU of Florida, and Americans for Immigrant Justice filed a federal lawsuit on behalf of a natural-born U.S. citizen who was unlawfully detained — and nearly deported — as a result of a Florida sheriff’s improper collaboration with Immigration and Customs Enforcement.
Explore case
Florida
May 2025
Immigrants' Rights
Peter Sean Brown v. Richard Ramsay
The American Civil Liberties Union, ACLU of Florida, and Americans for Immigrant Justice filed a federal lawsuit on behalf of a natural-born U.S. citizen who was unlawfully detained — and nearly deported — as a result of a Florida sheriff’s improper collaboration with Immigration and Customs Enforcement.
Tennessee
May 2025
Criminal Law Reform
Prisoners' Rights
State v. Bishop
This case presents two questions: first, whether, under the Fourth Amendment to the U.S. Constitution and Article I, section 7 of the Tennessee Constitution, Union City Police Department officers possessed probable cause to conduct a warrantless search of the defendant’s vehicle based exclusively on the alleged odor of cannabis, and second, whether the Court of Appeals had jurisdiction to overturn the defendant’s conviction. The ACLU’s Criminal Reform Legal Project and State Supreme Court Initiative, along with the ACLU of Tennessee filed an amicus brief arguing first, that after Tennessee’s legalization of hemp in 2019, an officer’s alleged detection of the odor of cannabis is insufficient to establish probable cause to conduct a warrantless search of a vehicle in Tennessee, and second, that the court of appeals improperly held that it lacked jurisdiction to overturn the defendant’s conviction.
Explore case
Tennessee
May 2025
Criminal Law Reform
Prisoners' Rights
State v. Bishop
This case presents two questions: first, whether, under the Fourth Amendment to the U.S. Constitution and Article I, section 7 of the Tennessee Constitution, Union City Police Department officers possessed probable cause to conduct a warrantless search of the defendant’s vehicle based exclusively on the alleged odor of cannabis, and second, whether the Court of Appeals had jurisdiction to overturn the defendant’s conviction. The ACLU’s Criminal Reform Legal Project and State Supreme Court Initiative, along with the ACLU of Tennessee filed an amicus brief arguing first, that after Tennessee’s legalization of hemp in 2019, an officer’s alleged detection of the odor of cannabis is insufficient to establish probable cause to conduct a warrantless search of a vehicle in Tennessee, and second, that the court of appeals improperly held that it lacked jurisdiction to overturn the defendant’s conviction.