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
1,689 Court Cases
Court Case
Aug 2020
National Security
Immigrants' Rights
Hassoun v. Searls — Challenge to Unlawful Indefinite Detention
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Court Case
Aug 2020
National Security
Immigrants' Rights
Hassoun v. Searls — Challenge to Unlawful Indefinite Detention
Tennessee
Aug 2020
Voting Rights
Lay v. Goins
The American Civil Liberties Union, the ACLU of Tennessee, and Dechert LLP filed a lawsuit seeking to make absentee voting available to all eligible Tennessee voters during the COVID-19 pandemic.
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Tennessee
Aug 2020
Voting Rights
Lay v. Goins
The American Civil Liberties Union, the ACLU of Tennessee, and Dechert LLP filed a lawsuit seeking to make absentee voting available to all eligible Tennessee voters during the COVID-19 pandemic.
Nevada
Aug 2020
Criminal Law Reform
Davis v. Nevada
Every state has a constitutional obligation to provide legal representation to criminal defendants who cannot afford an attorney. Nevada is failing to fulfill this obligation for low income people in its rural counties on a daily basis. Many of these underfunded rural counties lack a true public defense system, and instead mainly rely on flat-fee or defacto flat fee contract attorneys to act as public defenders. These contract attorneys operate without the oversight, resources, or time necessary to ensure they are providing an adequate defense to low income Nevadans. In fact, very often they fail to communicate with clients in basic ways, advocate effectively for pretrial release at bail hearings, or conduct independent investigations necessary to defend their clients. Worse, they at times pressure clients into taking plea bargains against the clients’ express wishes. This is not justice.
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Nevada
Aug 2020
Criminal Law Reform
Davis v. Nevada
Every state has a constitutional obligation to provide legal representation to criminal defendants who cannot afford an attorney. Nevada is failing to fulfill this obligation for low income people in its rural counties on a daily basis. Many of these underfunded rural counties lack a true public defense system, and instead mainly rely on flat-fee or defacto flat fee contract attorneys to act as public defenders. These contract attorneys operate without the oversight, resources, or time necessary to ensure they are providing an adequate defense to low income Nevadans. In fact, very often they fail to communicate with clients in basic ways, advocate effectively for pretrial release at bail hearings, or conduct independent investigations necessary to defend their clients. Worse, they at times pressure clients into taking plea bargains against the clients’ express wishes. This is not justice.
Court Case
Aug 2020
Voting Rights
Collins v. Adams
The American Civil Liberties Union, ACLU of Kentucky, Lawyers’ Committee for Civil Rights Under Law, and Covington & Burling filed a federal lawsuit over Kentucky’s failure to take appropriate action to ensure eligible voters can safely cast a ballot in the November general election given the COVID-19 outbreak.
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Court Case
Aug 2020
Voting Rights
Collins v. Adams
The American Civil Liberties Union, ACLU of Kentucky, Lawyers’ Committee for Civil Rights Under Law, and Covington & Burling filed a federal lawsuit over Kentucky’s failure to take appropriate action to ensure eligible voters can safely cast a ballot in the November general election given the COVID-19 outbreak.
Puerto Rico
Aug 2020
Voting Rights
Ocasio v. Comisión Estatal de Elecciones
The American Civil Liberties Union, ACLU of Puerto Rico, and Paul, Weiss, Rifkind, Wharton & Garrison LLP filed a federal lawsuit challenging the Puerto Rico Election Commission’s failure to implement steps to ensure voters over 60 can safely cast a ballot in the November general election in the midst of the COVID-19 pandemic.
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Puerto Rico
Aug 2020
Voting Rights
Ocasio v. Comisión Estatal de Elecciones
The American Civil Liberties Union, ACLU of Puerto Rico, and Paul, Weiss, Rifkind, Wharton & Garrison LLP filed a federal lawsuit challenging the Puerto Rico Election Commission’s failure to implement steps to ensure voters over 60 can safely cast a ballot in the November general election in the midst of the COVID-19 pandemic.