• About
    • About Us
    • History
    • Staff
    • Board
    • Financials
    • Contact Us
    • Jobs & Internships
  • Resources
    • Request Legal Assistance
    • Request a Speaker
    • Know Your Rights
    • Firewall for Freedom
    • Press Resources
    • Shop ACLU Merch
  • Events & Action
    • Volunteer
    • Events
    • Take Action
  • Our Work
    • In the Courts
    • In the Community
    • At the Capitol
  • Publications
    • Newsletters
    • Reports
    • Podcast
    • Videos
  • Issues
    • All Issues
    • Criminal Legal Reform
    • Privacy & Technology
    • LGBTQ+ Equality
    • Unhoused Peoples' Rights
    • Voting Rights
    • Government Transparency
  • Español
  • Donate
    • Donate
  • Donate
    • Donate

Court Cases

  • Share this page
      • Active
      • Advancing liberty
      • Closed
      • Decided
      • Defending liberty
      • Filed
      • Historic
      • In federal trial court
      • In State Supreme Court
      • In state trial court
      • In U.S. Supreme Court
      • Landmark case
      • Lost
      • Lost appeal
      • On appeal
      • Open
      • Other
      • Pending
      • Victory!
      • Won
      • Won appeal
      • Indigenous Justice
      • Unhoused Peoples' Rights
      • Women’s Rights
      • Voting Rights
      • Student and Youth Rights
      • Reproductive Freedom
      • Racial Justice
      • Privacy & Technology
      • LGBTQ+ Equality
      • Immigrant Justice
      • Government Transparency
      • Freedom of Expression & Religion
      • Criminal Legal Reform
Filter by Status: In federa...
    • Active
    • Advancing liberty
    • Closed
    • Decided
    • Defending liberty
    • Filed
    • Historic
    • In federal trial court
    • In State Supreme Court
    • In state trial court
    • In U.S. Supreme Court
    • Landmark case
    • Lost
    • Lost appeal
    • On appeal
    • Open
    • Other
    • Pending
    • Victory!
    • Won
    • Won appeal
    • Indigenous Justice
    • Unhoused Peoples' Rights
    • Women’s Rights
    • Voting Rights
    • Student and Youth Rights
    • Reproductive Freedom
    • Racial Justice
    • Privacy & Technology
    • LGBTQ+ Equality
    • Immigrant Justice
    • Government Transparency
    • Freedom of Expression & Religion
    • Criminal Legal Reform

All Cases

3 Court Cases
Court Case
May 07, 2025
Placeholder image
  • Immigrant Justice|
  • +1 Issue

D.B.U. et al. v. Donald J. Trump et al.

The ACLU of Colorado filed an emergency class action lawsuit in the U.S. District Court for the District of Colorado to halt removals of Coloradans under the Alien Enemies Act.
Court Case
Apr 21, 2025
Placeholder image
  • Immigrant Justice|
  • +3 Issues

ACLU, et al. v. U.S. ICE

The American Civil Liberties Union and ACLU of Colorado filed a lawsuit against ICE to obtain records regarding the agency’s potential plans to expand immigration detention across Colorado and Wyoming.
Court Case
Oct 15, 2024
Placeholder image
  • Freedom of Expression & Religion|
  • +2 Issues

SeeWalker v. Vail

Danielle SeeWalker was selected as Vail’s summer 2024 Artist in Residence. But after she expressed her views on the humanitarian crisis in Gaza, Vail cancelled her residency. We sued Vail on behalf of Ms. SeeWalker for the town's unconstitutional viewpoint-based discrimination and retaliation.
Court Case
May 07, 2025
Placeholder image
Court Case
May 07, 2025
  • Immigrant Justice|
  • +1 Issue

D.B.U. et al. v. Donald J. Trump et al.

The ACLU of Colorado filed an emergency class action lawsuit in the U.S. District Court for the District of Colorado to halt removals of Coloradans under the Alien Enemies Act.
Explore Case
Court Case
Apr 21, 2025
Placeholder image
Court Case
Apr 21, 2025
  • Immigrant Justice|
  • +3 Issues

ACLU, et al. v. U.S. ICE

The American Civil Liberties Union and ACLU of Colorado filed a lawsuit against ICE to obtain records regarding the agency’s potential plans to expand immigration detention across Colorado and Wyoming.
Explore Case
Court Case
Oct 15, 2024
Placeholder image
Court Case
Oct 15, 2024
  • Freedom of Expression & Religion|
  • +2 Issues

SeeWalker v. Vail

Danielle SeeWalker was selected as Vail’s summer 2024 Artist in Residence. But after she expressed her views on the humanitarian crisis in Gaza, Vail cancelled her residency. We sued Vail on behalf of Ms. SeeWalker for the town's unconstitutional viewpoint-based discrimination and retaliation.
Explore Case

Stay Informed

Sign up to be the first to hear about how to take action.

By completing this form, I agree to receive occasional emails per the terms of the ACLU’s privacy statement.

By completing this form, I agree to receive occasional emails per the terms of the ACLU’s privacy statement.

  • News
  • Careers
  • ACLU National
  • Donate

© 2025 ACLU of Colorado

  • Privacy Statement
  • Website Accessibility
  • User Agreement
  • Your Data Choices