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Colorado Attorney General Phil Weiser has taken the federal government to court in a bid to stop work on the planned Big Horn immigration detention center in Hudson. The state filed a complaint and asked a federal judge for a preliminary injunction to halt renovation, construction, and any planned operation of the facility. The defendants named include the Department of Homeland Security under Secretary Markwayne Mullin and David J. Venturella, the senior ICE official performing the duties of Director.
What Colorado is asking the court to do
Weiser wants the judge to force DHS and ICE to complete a National Environmental Policy Act review before moving forward. The state asks the court to pause all work on the Hudson site and to set aside the federal contract with GEO Group until the agencies do the required environmental analysis. The planned Big Horn site would be roughly a 1,200‑bed facility under a multi‑year contract worth many millions. Colorado argues the change could nearly double the town’s population and strain water, sewer, emergency services, and nearby wildlife habitat.
NEPA: legitimate concern or a legal speed bump?
NEPA is a real law. Environmental reviews matter when a project could harm local water or wildlife. But using NEPA to block a federal detention contract reads like a novel twist in the usual state-versus-federal routine. This is not the only lawsuit aimed at the Hudson site — advocacy groups have filed similar NEPA challenges — and this move comes from an attorney general who, by his own tally, seems to treat lawsuits as a full‑time job. When politics and legal tactics mix, the public deserves straight answers, not clever delays that slow down federal immigration operations.
What’s really at stake for Colorado and the country
Beyond the environmental claims, the case raises bigger questions. Who gets to decide where the federal government houses detainees? How should local impacts be balanced with national immigration policy and contracts with private operators like GEO Group? The court could be asked to sort through competing claims about federal supremacy, NEPA procedure, and local harm. Secretary Markwayne Mullin and ICE’s David J. Venturella will need to explain why the contract was awarded and whether an environmental review was done or properly excluded.
At bottom, this fight will turn on the judge’s appetite for stopping a federal project in its tracks while litigation plays out. Coloradans deserve protection of their towns and rivers, but they also deserve clarity from leaders who won’t weaponize every law for a political headline. Watch for the court’s response and for clearer answers from GEO Group, DHS, and Attorney General Phil Weiser — whose lawsuit count and political ambitions make this case as much about politics as policy.
