Federal judge blocks Idaho's immigration law over constitutional concerns

In Idaho, a federal judge issued a preliminary injunction against House Bill 83, a contentious state immigration measure, effectively blocking its enforcement following a lawsuit filed by the ACLU of Idaho. This bill, which criminalizes both unlawful entry and reentry into the state and was signed into law by Governor Brad Little on March 27, 2025, allows local law enforcement to arrest migrants suspected of illegal entry if they are involved in another crime. Concerns regarding the constitutionality of the law, particularly regarding due process violations and the potential to conflict with federal immigration law, were central to the ruling by Federal Judge Amanda Brailsford. The ACLU has argued that the legislation attempts to undermine federal immigration enforcement, unlawfully restricts interstate commerce, and lacks sufficient clarity regarding prohibited actions. The judge noted that the legal action presented by the ACLU indicated a strong likelihood of success, stating that individuals could suffer irreparable harm should the law be applied. Following the judge's ruling, the ACLU of Idaho expressed optimism regarding the outcome of the case, stating it hopes this decision will deter lawmakers from passing similar legislation in the future. The state’s attorney general's office is currently reviewing the ruling as they consider their options moving forward. Meanwhile, stakeholders continue to analyze the implications of this injunction, reflecting broader national debates about immigration policy and state versus federal authority.