The court filing from U.S. Attorney Jeanine Pirro's office doesn't refer to her as Ilhan Omar. It identifies the Minnesota congresswoman as "Ilhan Nur Said Elmi, a/k/a Ilhan Abdullahi Omar."
Federal prosecutors put that name in a filing to the chief judge of the federal court in Washington.
To see why it matters, you need to know how Somali names work. A child's second name is usually the father's first name, and the names after it trace back through the father's family. A woman named "Ilhan Nur Said Elmi" would be the daughter of a man named Nur Said Elmi.
In 2009, Omar married a man named Ahmed Nur Said Elmi.
For years, critics have alleged that Ahmed Nur Said Elmi is Omar's brother, and that she married him to help him with his immigration status. Omar has denied it. This week, MS NOW host Chris Hayes asked her directly whether she was related to her former husband. "Not to my knowledge," she said.
Most people know whether they married their brother.
Last week, an Oxford historian who studies Somalia referred to Omar's father as "Nur Said." Now the Justice Department has used the same family name for Omar herself, in a filing in the criminal investigation that brought federal agents to her door.
Omar's office says the government has it wrong. "This is completely false," a spokesperson said. "Ilhan Omar is her real name." The office called it a "desperate smear." But according to two people familiar with the investigation, the name in the filing is no mistake. They say her real name is Ilhan Nur Said Elmi.
Using a different name isn't a crime. Plenty of Americans go by names other than the ones on their birth certificates, and Omar's defenders will make that point. What would be a crime is lying to federal immigration authorities about who you are, who your family is, and whom you married. That's the question the government is now investigating.
It could also explain one of the biggest mysteries in the case. In 2023, a request for the naturalization records of Omar's father, under the name Nur Omar Mohamed, came back with "no record is found to exist." If he went by a different name, his records could be filed under that one instead.
If the government proves that Omar married her brother to get around immigration law, her problems won't end with a fine. Homeland Security Secretary Markwayne Mullin has said lying on an immigration application has "no expiration." Omar's own citizenship runs through her father's paperwork, and federal agents are now examining it page by page. The Constitution requires members of the House to have been citizens for at least seven years.
President Trump didn't wait for a verdict. "She used a fake name to be sworn in," he told a rally in Iowa on Thursday. "I assume she must immediately have to resign from Congress."
The case for resignation is simple. Federal agents have searched Omar's home with a warrant signed by a judge. A grand jury has subpoenaed her relatives, and investigators seized her sister's phone earlier this year. According to the New York Times, text messages between family members helped persuade a judge to approve the search. Now the Justice Department identifies her in court by the family name she says isn't hers. A member of Congress who can't tell voters her real name, or say for certain whether she married her brother, has a hard time asking for their trust.
Omar insists she's the victim of a Trump vendetta. But according to the Times, the investigation into her began in 2024, under Joe Biden.
The search isn't over either. Pirro's office told the court the warrant "hasn't been fully executed," and asked to delay any response to requests to unseal it until it has been. Fourteen news organizations and the New York Times are fighting to make the warrant public. Agents have already taken Omar's phone, passport, computers, and notebooks, and they reportedly collected a DNA sample.
For nearly a decade, anyone who raised these questions was called a bigot or a conspiracy theorist. Reporters who dug into her family history were dismissed as fringe.
This week, the Justice Department wrote the name in a federal court filing: Ilhan Nur Said Elmi.