Omar has emphatically denied the allegation, and it has never been publicly proven.
But according to Mullin, the federal government is now taking a closer look.
Johnson asked the DHS secretary what Americans could expect from the investigation.
“Something’s going to happen,” Mullin said.
Mullin then made an even more explosive assertion about what investigators believe occurred.
“We know that she married her brother to try to bring him into the United States,” he began.
That remains an allegation rather than an established fact. No criminal charges related to the marriage claim have been publicly announced, and Omar has repeatedly maintained that Elmi is not her brother.
Still, Mullin indicated that investigators are looking beyond the marriage itself and examining whether there could be broader immigration issues involving Omar’s family.
“There may be more to this — the whole family migration and possibly some illegal activity for them to come to the United States to begin with. But all of this, we’re investigating.”
The DHS secretary emphasized that investigators would need evidence before the government could move forward with any case.
“If we actually move a case forward, it’s not a political case. It’s actually a case because they did things wrong.”
Mullin also argued that alleged fraud committed during the immigration process can have consequences long after someone enters the country, particularly if authorities determine that material information was concealed or falsified.
“If you decided to break the law or lie on the information you gave the United States … but you didn’t tell us who you actually were … there’s no expiration to that. If we can prove it that you shouldn’t have been here in the first place, we’ll deport you.”
The comments are certain to reignite one of the most persistent controversies surrounding Omar, a Somali-born naturalized U.S. citizen who has represented Minnesota in Congress.
Omar has repeatedly rejected the central allegation.
In 2020, she described the accusations as “absolutely false and ridiculous,” adding that “insinuations that Ahmed Nur Said Elmi is my brother are absurd and offensive.”
Her office did not immediately provide Blaze News with a response to Mullin’s latest remarks.
The controversy has taken on new significance because Mullin is not the only senior Trump administration official publicly discussing potential federal scrutiny.
Vice President JD Vance said in May that the Justice Department was examining the matter.
“You read the things about Ilhan Omar and about who she married and whether she didn’t marry this person or that person,” Vance said.
Vance stressed that investigators would still need to establish whether a prosecutable offense actually occurred.
“It certainly seems like something fishy is there, but everybody’s entitled to equal justice under the laws, so we’re going to investigate it,” he added. “We’re going to take a look at it. If we think that there’s a crime, we’re going to prosecute that crime. And that’s something the Department of Justice is looking at right now.”
President Donald Trump has likewise repeatedly brought up the allegations involving Omar.
“If that’s true, she shouldn’t be a congressman,” he said definitively. “And we should throw her the hell out of our country.”
The important distinction remains the phrase “if that’s true.”
Despite years of political accusations and online speculation, the claim that Omar married her biological brother has not been established in court, and federal authorities have not publicly announced criminal charges against her over the marriage.
Omar maintains that the entire story is false and politically motivated.
What has changed, however, is the level of attention the allegation is receiving from officials at the highest levels of the federal government.
The controversy is no longer being discussed solely by activists, political opponents, or commentators. The Homeland Security secretary says his department is investigating, while the vice president has publicly said the Justice Department is examining potential immigration fraud.
Whether those inquiries uncover evidence sufficient for charges remains to be seen.
But Mullin made one thing clear during Thursday’s interview: as far as the Trump administration is concerned, the matter is not considered closed.
And his warning — “Something’s going to happen” — is likely to ensure the scrutiny surrounding Omar only intensifies.
We can only hope that she is deported and out of our government and America.