US Investigators Reportedly Have DNA Evidence in Ilhan Omar Immigration Fraud Probe

Federal investigators are reportedly examining DNA evidence as part of an investigation into Democratic US Representative Ilhan Omar over allegations of immigration and marriage fraud, according to a report published by the New York Post on October 19, 2026.

The newspaper, citing unnamed sources familiar with the investigation, reported that prosecutors believe the evidence could help examine a longstanding allegation that Omar married Ahmed Nur Said Elmi in 2009 to assist his immigration application, while concealing an alleged sibling relationship.

The allegations have not been proven in court, and the reported DNA evidence has not been independently verified through publicly available forensic findings. Omar has repeatedly denied wrongdoing.

1. What does the latest report claim?

According to the New York Post, federal prosecutors are gathering evidence in a years-long investigation into whether Omar or members of her family misrepresented information to US immigration authorities.

The newspaper's report identifies several elements of the investigation:

• • Reported DNA evidence: Sources told the newspaper that investigators had obtained DNA evidence they believe could help examine the allegation concerning Elmi's relationship to Omar.
  • Government records and whistleblower accounts: Investigators are reportedly reviewing documents and information supplied by people familiar with the allegations.
  • Search of Omar's residence: Federal agents searched her Washington, DC, home on October 12 and seized property as part of the investigation.
  • Possible criminal proceedings: Sources cited by the newspaper said investigators were building a case that could be presented to a grand jury. This does not mean charges have been filed or guilt established.

One important limitation remains: the newspaper has not publicly presented DNA test results establishing the alleged biological relationship. The precise origin, methodology and interpretation of the reported samples have not been independently confirmed in the available reporting.

2. The controversy surrounding Omar's 2009 marriage

The central allegation concerns Omar's marriage to Ahmed Nur Said Elmi in 2009. Critics have alleged that Elmi was her biological brother and that the marriage was intended to facilitate his immigration status.

Omar has consistently rejected the allegation.

According to the New York Post, Elmi applied for a marriage-based green card but later withdrew his application in 2019 after immigration authorities sought additional evidence about the marriage. The report does not establish that the application was fraudulent or that the alleged sibling relationship has been proven.

Omar's marriage history and overlapping relationships have been subjects of political controversy for years. However, disputed timelines or incomplete public records are not, by themselves, proof of a criminal offence.

3. What happened during the federal search?

The October 12 search of Omar's Washington residence has become a major development in the investigation.

The Associated Press reported that Omar's lawyers subsequently demanded the return of property seized during the search, describing the investigation as unjustified and unlawful. They also raised concerns about the handling of materials potentially protected by congressional privileges.

The Justice Department rejected the lawyers' allegations of procedural misconduct, maintaining that investigators complied with court orders and legal obligations.

The search warrant indicates that investigators obtained judicial authorization to search the property. It does not establish that Omar committed a crime, and its full evidentiary basis has not been made public.

4. Why the investigation has attracted political attention

Omar is a prominent Democratic member of Congress and a frequent critic of President Donald Trump. The investigation has therefore developed amid an already polarized political environment.

The Washington Post reported that the Trump administration scrutinised Omar's immigration records in 2019, but that earlier review did not produce evidence of citizenship-related wrongdoing, according to the newspaper's reporting on the previous investigation. The current inquiry has renewed questions about whether the government has uncovered new evidence or is revisiting old allegations.

Omar and her legal representatives have argued that the investigation is politically motivated. Federal officials have defended their actions and said the investigation must be assessed through the evidence and applicable law.

Both the political context and the legal process matter, but neither establishes whether the underlying allegations are true.

5. Could Omar lose her US citizenship?

The possibility of de-naturalization has been raised in public discussion surrounding the investigation.

Omar arrived in the United States as a Somali refugee in 1995 and became a naturalized US citizen in 2000, according to Reuters.

Under US law, citizenship obtained through unlawful procurement or material concealment or misrepresentation can, in certain circumstances, be challenged through legal proceedings. However, investigators would need to establish the relevant legal grounds, and the allegations would be subject to judicial scrutiny.

A criminal investigation, a potential indictment and the revocation of citizenship are separate legal matters. There has been no publicly established finding in the cited reporting that Omar's citizenship has been revoked or that she has been convicted of immigration fraud.

6. What happens next?

The key developments

Source: New York Post