PBS and CNN reporters were among those defending Rep. Ilhan Omar (D-Minn.) against allegations that she married her brother, with one claiming the allegations have been "discredited."
"There's a lot of talk about the fact that she was married to her brother," he responded. "I know nothing about it, I hear she was married to her brother. You're asking a question about it. I don't know, but I'm sure there's somebody [who] would be looking at that."
Among those criticizing Trump was PBS reporter Yamicha Alcindor, who made the claim that the allegations were definitively debunked.
"As President Trump readies to speak at his NC rally, it's important to note that today he spoke about a discredited conspiracy theory about Rep. Omar marrying her brother," Alcindor wrote on Twitter. "Omar has said the claim is 'absurd and offensive.'"
She linked to a story from the Snopes website, which labeled the allegations "unproven."
CNN's Jim Acosta suggested that since Omar denied being married to her brother, there was nothing more to report.
"Congresswoman Omar has denied this and other claims about her as 'disgusting lies.' But Trump was willing to dive right in," he wrote on Twitter.
NowThis News also shared a video of Trump answering Robinson's question, claiming the allegations are "a far-right conspiracy theory." The Washington Examiner was among the outlets reporting on Trump's comments, adding: "Some right-wing sites contend that her ex-husband is really her brother, a claim Omar has vigorously denied."
"Sent a list of questions and a request to talk to her siblings and father, Omar declined to do so," it reported.
Omar's current husband did not reply to multiple calls, texts, and e-mails, while her ex-husband, who is believed to be living in Africa, did not respond to multiple e-mails."
An Omar spokesman told the paper that the allegation about Omar being married to her brother is one of a number of "conspiracy theories and false accusations about her personal life."