The Trump administration’s ongoing criminal investigation into Rep. Ilhan Omar’s 2000 naturalization, launched under expanded denaturalization priorities, centers on whether her late father misrepresented her age on immigration documents to enable derivative citizenship and on related family records. Homeland Security Investigations executed a court-authorized search of her Washington-area residence on October 12, 2026, seizing phones, computers, notebooks, and her passport, while issuing more than a dozen grand-jury subpoenas to relatives. No charges have been filed and no civil denaturalization complaint has been brought in federal court, though officials have described the probe as aimed at potential revocation of citizenship followed by removal proceedings. The case also encompasses scrutiny of a 2009 marriage previously examined in 2016. Any DOJ filing would require proving material, willful misrepresentation before a judge, a step distinct from the current investigation and subject to evidentiary and procedural hurdles.