Filed Date: June 27, 2019
Closed Date: Jan. 29, 2025
Clearinghouse coding complete
(This summary is temporary while we research the case.)
This case was filed in 2019 on behalf of six Teller County, CO residents and taxpayers against Teller County Sheriff Jason Mikesell. Plaintiffs sought to challenge Defendant's planned 287(g) agreement with U.S. Immigration and Customs Enforcement. The complaint alleged that such agreements were inconsistent with Colorado state law. For more information via the ACLU of Colorado, see here.
Summary Authors
Niam Vora (6/29/2026)
State / Territory:
Case Type(s):
Special Collection(s):
Trump 1.0 & 2.0 Immigration Enforcement Order Challenges
Trump Administration 1.0: Challenges to the Government
Key Dates
Filing Date: June 27, 2019
Closing Date: Jan. 29, 2025
Case Ongoing: No
Plaintiffs
Plaintiff Description:
Six Teller County taxpayers challenging the Teller County Sheriff's implementation of a Section 287(g) immigration enforcement agreement with U.S. Immigration and Customs Enforcement.
Plaintiff Type(s):
Attorney Organizations:
Public Interest Lawyer: Yes
Filed Pro Se: No
Class Action Sought: No
Class Action Outcome: Not sought
Defendants
Defendant Type(s):
Facility Type(s):
Case Details
Causes of Action:
Immigration and Nationality Act (INA), 8 U.S.C. §§ 1101 et seq.
Constitutional Clause(s):
Other Dockets:
Colorado state trial court 2019CV30051
Colorado state appellate court 20CA0929
Colorado state appellate court 23CA0589
Available Documents:
Outcome
Prevailing Party: Plaintiff OR Mixed
Relief Sought:
Relief Granted:
Injunction / Injunctive-like Settlement
Source of Relief:
Content of Injunction:
Preliminary relief request withdrawn/mooted
Issues
General/Misc.:
Immigration/Border:
Undocumented immigrants - state and local regulation
Policing:
Over/Unlawful Detention (policing)
Case Summary of Nash v. Mikesell, Civil Rights Litig. Clearinghouse, https://clearinghouse.net/case/48116/ (last updated 6/29/2026).