Federal investigators probing Rep. Ilhan Omar's immigration history are focused not on her alleged marriage to her brother but on whether she or her father lied on naturalization paperwork, a path that could strip her citizenship entirely.
The Trump administration has spent months signaling that Omar's "mysterious origin story" is under federal scrutiny. DHS Secretary Markwayne Mullin said on a podcast that "something's going to happen" as investigators examine the Minnesota congresswoman's family migration history. But according to three current and former federal officials who spoke to the New York Post, the real legal exposure has little to do with whether Ahmed Elmi is Omar's sibling, and everything to do with what her father put on paper when the family sought entry to the United States in 1995.
The distinction matters. Marriage fraud is a felony carrying up to five years in prison and a $250,000 fine. But Omar and Elmi divorced in 2017, and the five-year statute of limitations on marriage fraud charges has long since expired. That door is closed. The naturalization door is not.
A top immigration official told the Post that if investigators find sufficient evidence that Omar or her father, Nur Said Mohamed Elmi, lied on her immigration application, the Trump administration could launch a denaturalization process, a civil proceeding that would revoke her citizenship altogether.
A former top immigration official put it bluntly:
"If she misrepresented herself, that would wipe her out from naturalization."
Three specific areas of Omar's naturalization are under examination, the sources said. First, whether Omar was actually older than seventeen when she became a citizen in 2000, which would have disqualified her from the parental naturalization path she claims to have used. Second, whether her father misrepresented his role in the government of former Somali dictator Siad Barre. Third, whether a pre-1983 birth-year requirement, mandating that both parents be naturalized citizens, applies to Omar's case, given that her mother, Fadhuma Abukar Haji Hussein, is claimed by Omar to have died when Omar was two.
Omar has never publicly produced a birth certificate. Congressional records list her birth as October 1982. But former Minnesota congressional candidate AJ Kern has pointed to archived versions of the Minnesota Legislative Reference Library's website, accusing Omar of revising her official birth year from 1981 to 1982, allegedly two days after a 2019 social media video went viral arguing she was eighteen or nineteen, not seventeen, at the time of her naturalization.
If Omar was born in 1981 rather than 1982, she would have turned eighteen before her family's 2000 naturalization, too old to ride her father's application. That single digit changes everything about the legal analysis.
Omar's father, Nur Said Mohamed Elmi, fled Somalia in 1995 and became a U.S. citizen in 2000. For years he was publicly described as an "educator." But after his death in 2020, a different biography emerged. A former Somali prime minister tweeted respects and identified him as a colonel in the Somali National Army, a Soviet-trained officer who led a regiment during the 1977, 78 Ogaden War against Ethiopia.
That military record matters because U.S. immigration applications ask about prior government and military service. If Nur Said concealed his role in Barre's military apparatus, the misrepresentation could taint the entire family's naturalization. Border Czar Tom Homan has confirmed that ICE and Homeland Security Investigations are actively looking into the allegations.
Homan did not hold back about the standard being applied.
"If someone committed an immigration violation, if someone committed marriage fraud or anything like that, regardless if they're a congressman or not, no one's above the law."
DHS Secretary Mullin did not limit himself to vague hints. In remarks reported by Fox News, Mullin stated flatly: "We know that she married her brother to try to bring him to the United States. We know he now lives in London." He added that if illegal activity is proven, deportation remains on the table.
Vice President JD Vance confirmed in May that the Department of Justice was examining whether Omar committed immigration fraud. The Washington Examiner reported that Vance's anti-fraud task force opened a formal investigation, announced in March, centering on the marriage allegations. Vance said everyone is entitled to "equal justice."
Meanwhile, ICE has withheld FOIA records on Omar, citing active enforcement proceedings, a signal that the investigation is more than talk.
The man at the center of the brother allegation, Ahmed Elmi, is a UK national. Omar married him on February 12, 2009, in Eden Prairie, Minnesota, according to a Hennepin County marriage certificate. The ceremony was performed by a Christian minister, despite Omar being Muslim. They divorced in 2017.
Rumors that Elmi is Omar's brother originated years earlier in Minnesota's Somali community. Local bloggers alleged Omar introduced Elmi as her brother from London who needed "papers." Documents reviewed by the Post show that Omar, Elmi, and Omar's first husband, Ahmed Hirsi, shared a residence at one point. Omar had her third child with Hirsi while still legally married to Elmi.
A former executive-level federal official told the Post that a DNA test would "absolutely resolve the question one way or another." But there is no legal mechanism to compel Elmi to cooperate from abroad.
The same official predicted the outcome:
"The request will be made for DNA testing and it will be refused loudly and publicly."
Elmi surfaced last November as a visiting scholar at the University of the Witwatersrand in Johannesburg, South Africa. By January he had returned to the UK, where he holds a position at the University of Bristol's School of Sociology, Politics and International Studies. He leads undergraduate seminars on political theory and is conducting PhD research into "queerphobia in Kenya." He launched a Substack blog in the spring. Neither Elmi nor Omar responded to the Post's requests for comment.
Investigative journalist David Steinberg, writing on the Powerline blog, has long alleged that Omar's family fraudulently obtained U.S. asylum under a false name, claiming the family's real surname is Elmi, not Omar. Steinberg alleged that a second, unrelated family named Omar was being granted asylum, and that Ilhan, her sister Sahra, and her father used false names to apply as members of that family. Omar has called the allegations "disgusting lies."
Omar married Hirsi in a non-legally binding Muslim ceremony in 2002. Their first child, Isra, was born in 2003; their son Adnan followed in 2005. Omar then legally married Elmi in 2009 and had a third child with Hirsi that same year, while still legally wed to Elmi. After divorcing Elmi in 2017, she legally married Hirsi, then divorced him and married Tim Mynett, a former campaign staffer who is now her fourth husband.
Steinberg also reported that Omar filed joint tax returns with Hirsi in 2014 and 2015 while still legally married to Elmi, a detail that drew scrutiny from a congressional watchdog investigation that ultimately dismissed the misconduct case but left DOJ questions unresolved.
Five of Omar's six siblings remain publicly unidentified. Omar claims her father raised seven children. She has never produced a birth certificate. She claims her mother died when she was two. None of these biographical gaps are illegal on their own, but each one complicates the task of verifying the paperwork that made her a citizen.
The federal probe has also drawn attention to broader fraud patterns in Minnesota. The arrest of an alleged ringleader in a $250 million pandemic fraud scheme in Somalia has intensified scrutiny around Omar's political orbit, even as investigators pursue the immigration questions on a separate track.
No charges have been filed. No formal denaturalization proceeding has been announced. But the officials who spoke to the Post emphasized that unlike marriage fraud, there is no statute of limitations on stripping citizenship obtained through misrepresentation. The clock does not run out.
The legal path is narrow but real. If federal investigators can show that Omar or her father lied on the applications that brought the family into the country and made them citizens, the government can move to revoke that citizenship through a civil court proceeding. Omar would then face removal as a non-citizen, regardless of her seat in Congress.
Whether the evidence exists to clear that bar remains an open question. Omar has not cooperated publicly, Elmi is beyond U.S. jurisdiction, and the father who filed the original paperwork died in 2020. The witnesses are scarce. The documents, if they exist, are in federal hands.
The law does not care whether a sitting congresswoman finds the questions offensive. It cares whether the paperwork was honest. That is the only question that matters now.
