Illinois
United States v. Matthews
The Department of Justice sued the Illinois Board of Elections, demanding the state produce its full, unredacted voter file, which contains highly sensitive and personal data on every voter in the state. This suit appears to be part of the federal government's efforts to build a national voter database without congressional authorization and to improperly question the validity of state voter rolls.
Status: Ongoing
View Case
All Cases
10 Illinois Cases
U.S. Supreme Court
Jul 2025
Voting Rights
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.
Explore case
U.S. Supreme Court
Jul 2025
Voting Rights
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.
Illinois
May 2022
Privacy & Technology
ACLU v. Clearview AI
The ACLU, ACLU of Illinois, and the law firm Edelson PC filed a lawsuit on May 28, 2020 against Clearview AI alleging violation of Illinois residents’ privacy rights under the Illinois Biometric Information Privacy Act (BIPA). Plaintiffs in the case are the ACLU and ACLU of Illinois, Chicago Alliance Against Sexual Exploitation, Sex Workers Outreach Project Chicago, Illinois Public Interest Research Group, and Mujeres Latinas en Acción, who sue on behalf of their members, clients, and program participants.
Explore case
Illinois
May 2022
Privacy & Technology
ACLU v. Clearview AI
The ACLU, ACLU of Illinois, and the law firm Edelson PC filed a lawsuit on May 28, 2020 against Clearview AI alleging violation of Illinois residents’ privacy rights under the Illinois Biometric Information Privacy Act (BIPA). Plaintiffs in the case are the ACLU and ACLU of Illinois, Chicago Alliance Against Sexual Exploitation, Sex Workers Outreach Project Chicago, Illinois Public Interest Research Group, and Mujeres Latinas en Acción, who sue on behalf of their members, clients, and program participants.
Illinois
Jan 2021
LGBTQ Rights
Monroe v. Rauner
The ACLU of Illinois filed a lawsuit on behalf of six women – Janiah Monroe, Marilyn Melendez, Ebony Stamps, Lydia Helena Vision, Sora Kuykendall, and Sasha Reed – and seeks class certification on behalf of all prisoners in the custody of Illinois Department of Corrections who have requested from IDOC evaluation or treatment for gender dysphoria. The case seeks to force IDOC to reform its medical care system to put an end to the suffering it is currently causing transgender prisoners with gender dysphoria by denying them the medical care they need on a timely basis and consistent with the well-established medical standards.
Explore case
Illinois
Jan 2021
LGBTQ Rights
Monroe v. Rauner
The ACLU of Illinois filed a lawsuit on behalf of six women – Janiah Monroe, Marilyn Melendez, Ebony Stamps, Lydia Helena Vision, Sora Kuykendall, and Sasha Reed – and seeks class certification on behalf of all prisoners in the custody of Illinois Department of Corrections who have requested from IDOC evaluation or treatment for gender dysphoria. The case seeks to force IDOC to reform its medical care system to put an end to the suffering it is currently causing transgender prisoners with gender dysphoria by denying them the medical care they need on a timely basis and consistent with the well-established medical standards.
Illinois
Sep 2017
Women's Rights
Panattoni v. Village of Frankfort
The ÀÏÊìÅ®ÎçÒ¹¸£Àû and the ACLU of Illinois filed a lawsuit against the Village of Frankfort on behalf of veteran police officer Jennifer Panattoni. The suit alleges the Frankfort Police Department (FPD) subjected Officer Panattoni to pregnancy discrimination and retaliation, ultimately forcing her off the job for seven months without a paycheck.
Explore case
Illinois
Sep 2017
Women's Rights
Panattoni v. Village of Frankfort
The ÀÏÊìÅ®ÎçÒ¹¸£Àû and the ACLU of Illinois filed a lawsuit against the Village of Frankfort on behalf of veteran police officer Jennifer Panattoni. The suit alleges the Frankfort Police Department (FPD) subjected Officer Panattoni to pregnancy discrimination and retaliation, ultimately forcing her off the job for seven months without a paycheck.