Massachusetts
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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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.
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23 Massachusetts Cases
U.S. Supreme Court
Nov 2022
Privacy & Technology
Moore v. United States
On November 18, 2022, the ACLU and ACLU of Massachusetts, with the law firms of Thompson & Thompson, P.C. and Elkins, Auer, Rudof & Schiff, filed a petition asking the U.S. Supreme Court to take up the question whether long-term police use of a surveillance camera targeted at a person’s home is a Fourth Amendment search.
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U.S. Supreme Court
Nov 2022
Privacy & Technology
Moore v. United States
On November 18, 2022, the ACLU and ACLU of Massachusetts, with the law firms of Thompson & Thompson, P.C. and Elkins, Auer, Rudof & Schiff, filed a petition asking the U.S. Supreme Court to take up the question whether long-term police use of a surveillance camera targeted at a person’s home is a Fourth Amendment search.
U.S. Supreme Court
Dec 2021
Privacy & Technology
National Security
Merchant v. Mayorkas
The American Civil Liberties Union, the Electronic Frontier Foundation, and the ACLU of Massachusetts have filed a lawsuit against the Department of Homeland Security on behalf of 11 travelers whose smartphones and laptops were searched without warrants at the U.S. border.
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U.S. Supreme Court
Dec 2021
Privacy & Technology
National Security
Merchant v. Mayorkas
The American Civil Liberties Union, the Electronic Frontier Foundation, and the ACLU of Massachusetts have filed a lawsuit against the Department of Homeland Security on behalf of 11 travelers whose smartphones and laptops were searched without warrants at the U.S. border.
Massachusetts
Mar 2020
Immigrants' Rights
Rodas-Mazariegos et al. v. Moniz et al.
On March 25, 2020, the ACLU National Prison Project, ACLU Immigrants Rights Project, ACLU of Massachusetts, and the law firms of Demissie & Church and Graves & Doyle filed Rodas-Mazariegos et al v. Moniz et al in the District of Massachusetts, on behalf of immigrants detained at the Plymouth County Correctional Facility in Plymouth, Massachusetts. The filing followed news that a federal judge ordered the release of a detained class member in the ACLU’s Calderon v. Wolf suit in Plymouth County, citing the “extraordinary circumstances” of the COVID-19 pandemic.
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Massachusetts
Mar 2020
Immigrants' Rights
Rodas-Mazariegos et al. v. Moniz et al.
On March 25, 2020, the ACLU National Prison Project, ACLU Immigrants Rights Project, ACLU of Massachusetts, and the law firms of Demissie & Church and Graves & Doyle filed Rodas-Mazariegos et al v. Moniz et al in the District of Massachusetts, on behalf of immigrants detained at the Plymouth County Correctional Facility in Plymouth, Massachusetts. The filing followed news that a federal judge ordered the release of a detained class member in the ACLU’s Calderon v. Wolf suit in Plymouth County, citing the “extraordinary circumstances” of the COVID-19 pandemic.
Massachusetts
Oct 2019
Privacy & Technology
ACLU v. Department of Justice - FOIA Lawsuit Demanding Information About Facial Recognition Technology
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Massachusetts
Oct 2019
Privacy & Technology
ACLU v. Department of Justice - FOIA Lawsuit Demanding Information About Facial Recognition Technology
Massachusetts
Jul 2017
Voting Rights
Chelsea Collaborative v. Galvin
The American Civil Liberties Union, the ACLU of Massachussetts, and others filed a lawsuit in Massachussetts challenging the state’s requirement that eligible voters register 20 days before an election. The arbitrary deadline interferes with the fundamental right to vote and unnecessarily disenfranchises voters.
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Massachusetts
Jul 2017
Voting Rights
Chelsea Collaborative v. Galvin
The American Civil Liberties Union, the ACLU of Massachussetts, and others filed a lawsuit in Massachussetts challenging the state’s requirement that eligible voters register 20 days before an election. The arbitrary deadline interferes with the fundamental right to vote and unnecessarily disenfranchises voters.