Zohran Mamdani, New York City’s mayor since early 2026 and a naturalized U.S. citizen since 2018 after arriving from Uganda as a child, faces no active federal denaturalization proceedings. Calls from some Republican lawmakers for investigation into his 2018 naturalization application—centered on political affiliations or alleged nondisclosure—have produced no court filings or credible evidence of material fraud or willful misrepresentation that meets the legal threshold. Denaturalization requires a federal court order based on clear proof of illegal procurement, a standard applied sparingly and typically to cases involving terrorism or serious concealment rather than protected political speech. The high bar, absence of supporting facts, and multi-year timeline for litigation explain traders’ near-certain view that revocation will not occur before 2027. Remote scenarios that could shift odds include newly verified evidence of disqualifying conduct or an expedited DOJ action culminating in a final ruling by late 2026.