Concerns are mounting about the state of the US media landscape now that it looks increasingly likely that Paramount Skydance—a company controlled by the son of billionaire Larry Ellison, a donor to President Donald Trump—will succeed in its bid to acquire Warner Bros. Discovery.

One day after Netflix announced that it was dropping its previously accepted bid to buy Warner, many critics demanded that antitrust laws be invoked to block the Paramount-Warner merger from going through.

Alvaro Bedoya, former commissioner at the Federal Trade Commission, warned that the Ellison family could soon use their control over vast swaths of US media properties to engage in mass censorship, and he pointed to their decisions to cancel Stephen Colbert’s program and to refuse to air an interview with Democratic US Senate candidate James Talarico.