Judge Ramón E Reyes Jr of the Eastern District of New York threw out the Trump administration's lawsuit against New York City's sanctuary laws on Thursday, ruling flatly that "there is nothing within federal law that obligates states to participate in federal immigration enforcement." The city's police cannot be forced to hold immigrants for ICE through detainer requests, and the city's information-sharing restrictions stand. This is not an isolated ruling. Federal courts in Los Angeles, Chicago, and Minnesota have already dismissed nearly identical DOJ lawsuits challenging local sanctuary policies. The legal theory — that cities obstruct federal immigration law by declining to volunteer their resources — is now 0-for-4 in federal court. The anti-commandeering doctrine, rooted in the Tenth Amendment, continues to hold. Mayor Zohran Mamdani seized the moment, framing the ruling as a rejection of the federal government's attempt to "turn its public servants into deportation agents." The statement was pointed: "Our city belongs to all of us, and we will not abandon our neighbors to satisfy an inhumane, xenophobic agenda." The DOJ did not immediately comment. The legal victory exists alongside a ground-level reality that is more complicated. Earlier this month, an ICE agent shot 28-year-old Oscar Belgal during an enforcement operation while Belgal's child was in the back seat. The NYPD arrived afterward — not to assist the federal operation, according to Commissioner Jessica Tisch, but to preserve evidence. Protests followed, and the police response drew its own criticism, including the shoving of Democratic congressional candidate Darializa Avila Chevalier. While the DOJ loses in courtrooms, the federal government is winning through a different channel: 287(g) contracts, which formally deputize local police to enforce federal immigration law. The ACLU has tracked a rapid expansion of these agreements under the second Trump administration. New York City does not have such a contract, but the program's growth means the practical landscape of immigration enforcement is shifting regardless of sanctuary litigation outcomes. Immigrant advocates filed an amicus brief in the New York case arguing that sanctuary laws serve a critical "trust-building function" — encouraging immigrants to use hospitals, apply for public benefits, and report crimes to police without fear of deportation. The brief described the current administration's enforcement posture as "often lawless, violent and gratuitously cruel." The core question is not really about one ruling. It is about whether the federal government can effectively commandeer local governance by lawsuit, or whether it will route around the courts entirely through voluntary partnerships and executive pressure. The courtroom answer is clear. The political answer is still being written.