Fighting Voter Suppression
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.
Status: Ongoing
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Washington, D.C.
Oct 2025
Fighting Voter Suppression
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.
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101 Fighting Voter Suppression Cases
Montana
Sep 2025
Fighting Voter Suppression
Montana Federation of Public Employees v. Montana
Representing Western Native Voice and four sovereign tribal nations in Montana, the American Civil Liberties Union, ACLU of Montana, and Native American Rights Fund (NARF) challenged the latest in a line of Montana laws that hinder Native American participation in the state’s electoral process — SB 490, which drastically limits access to Election Day voter registration (EDR) in Montana. These laws violate a number of provisions in the Montana Constitution: the right to vote, equal protection, and due process.
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Montana
Sep 2025
Fighting Voter Suppression
Montana Federation of Public Employees v. Montana
Representing Western Native Voice and four sovereign tribal nations in Montana, the American Civil Liberties Union, ACLU of Montana, and Native American Rights Fund (NARF) challenged the latest in a line of Montana laws that hinder Native American participation in the state’s electoral process — SB 490, which drastically limits access to Election Day voter registration (EDR) in Montana. These laws violate a number of provisions in the Montana Constitution: the right to vote, equal protection, and due process.
Pennsylvania
Aug 2025
Fighting Voter Suppression
Eakin v. Adams County Board of Elections (Amicus)
In November 2022, thousands of Pennsylvania voters were denied the right to vote based on a meaningless paperwork error. They filled out their mail ballots, signed the form on the outer return envelope, and returned their ballots on time. Yet their ballots were not counted, because they either forgot to write the date on their return envelope, or they accidentally wrote the wrong date. We're fighting to make sure that every vote counts
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Pennsylvania
Aug 2025
Fighting Voter Suppression
Eakin v. Adams County Board of Elections (Amicus)
In November 2022, thousands of Pennsylvania voters were denied the right to vote based on a meaningless paperwork error. They filled out their mail ballots, signed the form on the outer return envelope, and returned their ballots on time. Yet their ballots were not counted, because they either forgot to write the date on their return envelope, or they accidentally wrote the wrong date. We're fighting to make sure that every vote counts
Washington, D.C.
Aug 2025
Fighting Voter Suppression
Bower v. Social Security Administration
Representing itself and two journalists from Lawfare, the American Civil Liberties Union brought a lawsuit to enforce Freedom of Information Act (FOIA) requests made to the Social Security Administration and U.S. Citizenship and Immigration Services regarding changes made to the SAVE program, which has been touted as being used by states in order to remove voters from the registration rolls. While the government made public statements about the SAVE program being updated, the details of those changes, such as the particular programs and databases that have been altered, the ways they have been altered, and the nature and extent of any use and sharing of individuals’ personal information by the federal agencies entrusted with that information, have all been kept secret.
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Washington, D.C.
Aug 2025
Fighting Voter Suppression
Bower v. Social Security Administration
Representing itself and two journalists from Lawfare, the American Civil Liberties Union brought a lawsuit to enforce Freedom of Information Act (FOIA) requests made to the Social Security Administration and U.S. Citizenship and Immigration Services regarding changes made to the SAVE program, which has been touted as being used by states in order to remove voters from the registration rolls. While the government made public statements about the SAVE program being updated, the details of those changes, such as the particular programs and databases that have been altered, the ways they have been altered, and the nature and extent of any use and sharing of individuals’ personal information by the federal agencies entrusted with that information, have all been kept secret.
California
Jul 2025
Fighting Voter Suppression
Issa v. Weber
Congressman Darrell Issa sued to prevent California from counting mail ballots postmarked by election day and received within the following seven days, consistent with California law. If successful, literally hundreds of thousands of Californians will be disenfranchised at each election. The ACLU and its three California affiliates have sought to intervene in the case on behalf of the League of Women Voters of California to ensure that California voters are able to have their ballots counted consistent with state procedures.
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California
Jul 2025
Fighting Voter Suppression
Issa v. Weber
Congressman Darrell Issa sued to prevent California from counting mail ballots postmarked by election day and received within the following seven days, consistent with California law. If successful, literally hundreds of thousands of Californians will be disenfranchised at each election. The ACLU and its three California affiliates have sought to intervene in the case on behalf of the League of Women Voters of California to ensure that California voters are able to have their ballots counted consistent with state procedures.
U.S. Supreme Court
Jul 2025
Fighting Voter Suppression
Bost v. Illinois State Board of Elections (Amicus)
Congressman Michael Bost brought suit trying to prevent Illinois from counting mail ballots that are voted by election day and received within the following fourteen days, consistent with Illinois law. The Seventh Circuit ruled that Congressman Bost lacks standing to sue. Bost sought certiorari from the U.S. Supreme Court on the question whether he has standing as a federal candidate to bring his lawsuit and have it decided on the merits.
While the ACLU strongly opposes Congressman Bost’s position on the merits and has repeatedly defended similar state laws from challenge, the rules that determine whether Bost has standing to even bring his anti-voter lawsuit also apply to civil rights groups when they bring suit to expand or protect the rights of voters.
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U.S. Supreme Court
Jul 2025
Fighting Voter Suppression
Bost v. Illinois State Board of Elections (Amicus)
Congressman Michael Bost brought suit trying to prevent Illinois from counting mail ballots that are voted by election day and received within the following fourteen days, consistent with Illinois law. The Seventh Circuit ruled that Congressman Bost lacks standing to sue. Bost sought certiorari from the U.S. Supreme Court on the question whether he has standing as a federal candidate to bring his lawsuit and have it decided on the merits.
While the ACLU strongly opposes Congressman Bost’s position on the merits and has repeatedly defended similar state laws from challenge, the rules that determine whether Bost has standing to even bring his anti-voter lawsuit also apply to civil rights groups when they bring suit to expand or protect the rights of voters.