Zohran Mamdani, the sitting New York City mayor elected in 2025 and sworn in January 2026, naturalized as a U.S. citizen in 2018 after arriving from Uganda as a child. Calls from some Republican lawmakers in 2025 for DOJ investigation into his naturalization forms centered on unproven claims of omitted affiliations, but immigration experts and fact-checkers identified no material evidence of fraud or ineligibility. Denaturalization proceedings remain rare, demand specific statutory grounds such as willful misrepresentation, and face significant procedural and judicial hurdles. Trader consensus at 97.5% against revocation before 2027 reflects these structural barriers and the absence of active, substantiated enforcement actions through mid-2026. Realistic scenarios that could still shift odds include emergence of verified new documentation showing disqualifying omissions, a major policy shift directing aggressive pursuit of similar cases, or unexpected court developments expanding denaturalization precedents—developments that remain low-probability based on current records.