The Federal Communications Commission doesn’t have the power to revoke any NBC station’s broadcast license over the content it produces, FCC Chairman Ajit Pai said Tuesday, putting a damper on recent suggestions by President Trump that NBC should be penalized for its critical coverage of the White House.

Pai’s remarks, delivered at a Washington conference, aimed to settle a flare-up over media law stemming from an NBC report that depicted a president at odds with his most senior military advisers when he indicated that he wanted what amounted to a tenfold increase in the U.S. nuclear arsenal. Trump called the report “pure fiction.”

“I believe in the First Amendment,” Pai said at an event organized by George Mason University’s Mercatus Center. “The FCC, under my leadership, will stand for the First Amendment. Under the law, the FCC does not have the authority to revoke a license of a broadcast station based on the content of a particular newscast.”