Zohran Mamdani, New York City’s mayor since 2025 and a naturalized U.S. citizen since 2018, faces no active denaturalization proceedings or documented evidence of willful material misrepresentation on his citizenship application. Republican calls for investigation in 2025 centered on political associations but produced no filings, charges, or supporting records meeting the strict legal standard of clear and convincing proof required for revocation. The Trump administration’s expanded denaturalization efforts in 2026 have targeted individuals with criminal convictions rather than cases lacking established fraud. Traders assign a 99.5% probability to “No” before 2027 because successful revocation demands federal court action with a high evidentiary burden rarely met outside narrow circumstances. A realistic shift would require new, verifiable proof of disqualifying conduct during naturalization emerging and prevailing in litigation within the narrow timeframe.