Colorado
All Cases
11 Colorado Cases
Colorado
Aug 2026
Voting Rights
United States v. Griswold
Representing Common Cause and two Colorado voters, the ACLU Voting Rights Project and ACLU of Colorado have filed a motion to intervene in a federal lawsuit over the federal government’s demand that Colorado turn over its entire voter registration rolls, including voters’ sensitive personal data such as drivers’ license numbers and partial social security numbers.
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Colorado
Aug 2026
Voting Rights
United States v. Griswold
Representing Common Cause and two Colorado voters, the ACLU Voting Rights Project and ACLU of Colorado have filed a motion to intervene in a federal lawsuit over the federal government’s demand that Colorado turn over its entire voter registration rolls, including voters’ sensitive personal data such as drivers’ license numbers and partial social security numbers.
Colorado
Jul 2026
Prisoners' Rights
E.L. v. Claps
Family members of individuals incarcerated in Adams County Jail are challenging a ban on in-person visits on the grounds that it violates their right to familial association under the Colorado Constitution.
The district court denied their motion for a preliminary injunction, in part based on its ruling that individuals cannot sue directly under the Colorado Constitution to stop violations of their individual rights if other remedies are theoretically available under state or federal law. If that ruling is left to stand, state constitutional protections could exist in name only, leaving courts unable to stop violations if a plaintiff could potentially proceed under a narrower statutory claim that might provide lesser relief or fail on the facts of the case. This case could therefore have far-reaching implications for the enforceability of constitutional rights across Colorado.
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Colorado
Jul 2026
Prisoners' Rights
E.L. v. Claps
Family members of individuals incarcerated in Adams County Jail are challenging a ban on in-person visits on the grounds that it violates their right to familial association under the Colorado Constitution.
The district court denied their motion for a preliminary injunction, in part based on its ruling that individuals cannot sue directly under the Colorado Constitution to stop violations of their individual rights if other remedies are theoretically available under state or federal law. If that ruling is left to stand, state constitutional protections could exist in name only, leaving courts unable to stop violations if a plaintiff could potentially proceed under a narrower statutory claim that might provide lesser relief or fail on the facts of the case. This case could therefore have far-reaching implications for the enforceability of constitutional rights across Colorado.
Colorado
May 2025
Immigrants' Rights
DBU v. Trump
Emergency lawsuit filed in federal court to again halt removals under the Alien Enemies Act for people within that court’s judicial district.
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Colorado
May 2025
Immigrants' Rights
DBU v. Trump
Emergency lawsuit filed in federal court to again halt removals under the Alien Enemies Act for people within that court’s judicial district.
Colorado
Apr 2025
Immigrants' Rights
American Civil Liberties Union Foundation v. U.S. Immigration and Customs Enforcement
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Colorado
Apr 2025
Immigrants' Rights
American Civil Liberties Union Foundation v. U.S. Immigration and Customs Enforcement
Colorado
Mar 2025
Voting Rights
Citizens Project v. City of Colorado Springs
Colorado Springs’s unusually-timed elections suppress voter turnout—disproportionately, among the City’s Black and Hispanic population. This federal court lawsuit challenges the City’s election timing for violating our clients’ right to vote free from denial of abridgment on account of race under the Voting Rights Act of 1965.
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Colorado
Mar 2025
Voting Rights
Citizens Project v. City of Colorado Springs
Colorado Springs’s unusually-timed elections suppress voter turnout—disproportionately, among the City’s Black and Hispanic population. This federal court lawsuit challenges the City’s election timing for violating our clients’ right to vote free from denial of abridgment on account of race under the Voting Rights Act of 1965.