A Trump-appointed federal judge has temporarily blocked key parts of a Colorado law aimed at increasing state oversight of an ICE detention centre, ruling that the state likely exceeded its constitutional authority. The decision represents a setback for Colorado's efforts to regulate immigration detention facilities operating within its borders and adds to a wider pattern of legal clashes between Democratic-led states and the federal government over immigration enforcement.

Chief US District Judge Daniel Domenico issued the preliminary injunction on Thursday, finding that Colorado's law likely crossed a constitutional line by imposing new requirements affecting GEO Group, the private contractor that runs the ICE detention facility. The ruling halts enforcement of the disputed provisions while litigation continues, preventing the state from applying its new oversight measures to the centre for now.