While surrounded by members of the media, New York City mayor-elect Zohran Mamdani, center, helps to serve meals at at POTS, a Bronx nonprofit that provides food assistance, in New York, Monday, Nov. 17, 2025. (AP Photo/Seth Wenig)

A judge has dismissed a Trump administration legal challenge to New York policies that block immigration officials from arresting people at state courthouses, saying the federal government can't force states to cooperate with those enforcement efforts.