Donald Trump’s long-simmering frustration with Fox News boiled over Sunday night, after the network posted another 2020 presidential poll showing him losing to every one of the Democratic front-runners in a potential matchup. “Fox has changed, and my worst polls have always been from Fox,” Trump told reporters on Sunday as he left his golf club in Bedminster, New Jersey. “There’s something going on at Fox. I’ll tell you right now. And I’m not happy with it.”

The poll, conducted August 11–13 from a random national sample of about 1,000 registered voters, is indeed quite bad for Trump. In head-to-head matches with four leading Democrats—Joe Biden, Bernie Sanders, Elizabeth Warren, and Kamala Harris—Trump loses in every single one. They aren’t nail-biting margins, either. Harris, though ostensibly fourth in the majority of polls, wins by 6 points, 45–39. Warren, the progressive firebrand, wins 46–39. Sanders, the progressive heavyweight, wins by 9 points (48–39), and Biden, the man that Trump allegedly worries about the most, whoops him by 12 points (50–38). Naturally for Trump, all bad news is fake news, no matter where it comes from, and he insisted as such on Monday morning. “Despite all of the Fake News, my Poll Numbers are great,” he tweeted. “New internal polls show them to be the strongest we’ve had so far! Think what they’d be if I got fair media coverage!”

Of course, Trump’s issues with Fox News run deeper than its highly respected polling division (FiveThirtyEight gives their pollsters an A rating—a score comparable to esteemed groups like Marist and Quinnipiac). As my colleague Gabriel Sherman reported, Trump has exacerbated a growing tension between the network’s hard-news division—exemplified by Bret Baier, Chris Wallace, and Shep Smith, among others—and its opinion hosts in prime time, namely Jeanine Pirro, Laura Ingraham, Sean Hannity, and Tucker Carlson, all of whom double as occasional White House advisers. And the president has made crystal clear which half of Fox News he thinks is the genuine article.

“When they have, like, a Juan Williams, who has never said a positive thing, and yet, when I show up at the Fox building, he’s out there, ‘Oh, sir, can I have a picture with you?’” he complained. On the other hand, he is “certainly happy” with Hannity, Carlson, Ingraham, as well as Lou Dobbs and Jesse Watters. “We have a lot of great people,” he added, speaking as if he were a member of the team. Even a former skeptic, Greg Gutfeld, got a shout-out: “He wasn’t good to me two years ago. Now he sees all I’ve done. He says, ‘Would you rather have a great president or a nice guy?’ I don’t know, I think I’m a nice guy, but nobody’s done in two-and-a-half years what I’ve done.”

The president also issued more direct threats at the network, which is now overseen by Rupert Murdoch’s less Trumpy son, Lachlan. (Unlike his father, Lachlan doesn’t have a close relationship with the president.) “They have to run it the way they want to run it. But Fox is different. There’s no question about it,” he grumbled, complaining about certain contributors now on the payroll: “Juan Williams, then they have the wonderful woman that gave Hillary Clinton the questions,” Trump added, referring to Donna Brazile, the former DNC chair. “That was a terrible thing. And all of a sudden, she’s working for Fox. What’s she doing working for Fox?”