This afternoon, Fox announced that Clemente is being moved to a new “longform unit” at the network. Veteran Fox executive Jay Wallace will replace him as executive VP of news. For Fox, the shake-up has wide-ranging implications. Until today, Clemente was seen inside and outside the network as a leading contender to replace Ailes, who turns 76 next month. “He’s out,” a Fox host told me. “He’s been kneecapped.”

While the suddenness of Clemente’s ouster stunned Fox hosts and producers, Ailes’s very public backing of Clemente in front of his colleagues might have been seen as an omen. “Roger is very needy and insecure,” one Fox veteran said. He’s often nicest to you when you’re on the way out.

One Fox anchor told me that Ailes suspected Clemente of leaking to the press over the past year. Inside Fox, where executives use burner phones because they fear their corporate lines are monitored, there’s not much worse than being labeled a leaker. Another mark against Clemente is that he had a relationship with Rupert Murdoch. Ailes is said to dislike executives who build up independent power bases, and talking to Murdoch, Ailes’s boss, would be seen as a threat. Lastly, Clemente, a former ABC News executive, never fully shed the stigma that he was an outsider. (Politically, he’s a centrist). His replacement, Jay Wallace, is a longtime Fox executive, who’s risen up through the ranks over the past decade.