Yochai Benkler, a Harvard Law School professor who co-directs the Berkman Klein Center for Internet & Society, says, “Fox’s most important role since the election has been to keep Trump supporters in line.” The network has provided a non-stop counternarrative in which the only collusion is between Hillary Clinton and Russia; Robert Mueller, the special counsel, is perpetrating a “coup” by the “deep state”; Trump and his associates aren’t corrupt, but America’s law-enforcement officials and courts are; illegal immigration isn’t at a fifteen-year low, it’s “an invasion”; and news organizations that offer different perspectives are “enemies of the American people.”

Benkler’s assessment is based on an analysis of millions of American news stories that he and two co-authors, Robert Faris and Hal Roberts, undertook for their 2018 book, “Network Propaganda: Manipulation, Disinformation and Radicalization in American Politics.” Benkler told me that he and his co-authors had expected to find “symmetric polarization” in the left-leaning and the right-leaning media outlets. Instead, they discovered that the two poles of America’s media ecosystem function very differently. “It’s not the right versus the left,” Benkler says. “It’s the right versus the rest.”

[…] Conservative media outlets, however, focus more intently on confirming their audience’s biases, and are much more susceptible to disinformation, propaganda, and outright falsehoods (as judged by neutral fact-checking organizations such as PolitiFact). Case studies conducted by the authors show that lies and distortions on the right spread easily from extremist Web sites to mass-media outlets such as Fox, and only occasionally get corrected. When falsehoods are exposed, core viewers often react angrily. According to Media Matters, Fox hosts used the word “invasion” thirty-three times in the thirty days before the midterm elections. After Shepard Smith, the Fox News anchor, contradicted Trump’s scaremongering about immigrants—declaring, “There is no invasion, no one is coming to get you”—viewers lashed out at him on social media.

[…]  Alisyn Camerota was a co-host on “Fox & Friends” for years before joining CNN, in 2014. She says that Fox has solid news reporters, but she became so troubled by the lack of standards on “Fox & Friends” that she wrote a thinly veiled novel, “Amanda Wakes Up,” about the blurring of journalistic lines at a cable morning show. “ ‘Fox & Friends’ was a fun show, but it was not a news show,” she says. “It regularly broke the rules of journalism. It was basically Roger’s id on TV. He’d wake up in the morning with some bee in his bonnet, spout it off to Bill Shine, and Shine would tell us to put it on TV.” She says that the show’s producers would “cull far-right, crackpot Web sites” for content, and adds, “Never did I hear anyone worry about getting a second source. The single phrase I heard over and over was ‘This is going to outrage the audience!’ You inflame the viewers so that no one will turn away. Those were the standards.”