Brendan Carr, the chairman of the Federal Communications Commission, threatened on Saturday to revoke broadcasters’ licenses over their coverage of the war with Iran, his latest move in a campaign to stomp out what he sees as liberal bias in broadcasts.

As the war entered its third week, Mr. Carr accused broadcasters of “running hoaxes and news distortions” in a social media post and warned them to “correct course before their license renewals come up.”

“Broadcasters must operate in the public interest, and they will lose their licenses if they do not,” he said.

Mr. Carr shared a Truth Social post by President Trump that criticized the news media for its coverage of the war with Iran. Mr. Trump referred to a story published by The Wall Street Journal that reported five American refueling planes had been struck in Saudi Arabia, claiming its headline was “intentionally misleading.” He accused the news media of wanting the United States to lose the war.

Dow Jones & Company, which publishes The Wall Street Journal, did not immediately respond to a request for comment.

Defense Secretary Pete Hegseth, in a similar vein, delivered a lengthy complaint about CNN’s coverage of the war in the Middle East during a news conference Friday, saying that he looked forward to the news network being controlled by the billionaire David Ellison.

Mr. Ellison, who has a friendly relationship with Mr. Trump, is the owner of Paramount Skydance, which is seeking to purchase Warner Bros. Discovery for $111 billion. That deal, if it closes, will bring CNN under Mr. Ellison’s purview. He is best known in the journalism world for shaking up leadership at CBS News, where he has installed more conservative journalists.