Zohran Mamdani, New York City’s mayor since early 2026, became a naturalized U.S. citizen in 2018 after arriving from Uganda as a child. Denaturalization requires the Department of Justice to prove in federal court either illegal procurement of citizenship or a willful, material misrepresentation on the application that would have altered the outcome. No such evidence has surfaced in public records or proceedings. Calls from some Republican lawmakers in late 2025 for investigation produced no formal action or supporting documentation, and experts describe successful revocations as exceedingly rare outside narrow historical cases. The near-certain trader consensus on “No” reflects these structural legal barriers and the absence of any active case. A shift before 2027 would require newly discovered proof of fraud meeting the high evidentiary standard, followed by swift court resolution within months—an outcome with no precedent in comparable recent matters.