I skimmed it. He spends a lot of time examining the media, but my point is he seems to think all media is the same. It’s not. There is Liberal media and then there is Conservative media. Conservative media thrives on those outrage stories of the day that he notes. Liberal media however, traditionally took an in depth look into issues and thrived on advancing discussion.
Conservative media has been around for decades doing what they do like trying to get Clinton impeached as you note, but Liberal media (nor Fox news for that matter) did not resort to the official party line until after 2000.
Trump thrived on this in 2016. He was not looking to appeal to Progressive voters. They were already polarized, as were the Conservative voters as Klein notes. Rather, he was looking to appeal to enough moderate voters and did so by noting how biased media against him was. It worked. Will it work in 2020? I’m not sure. But I think the liberal media is playing the wrong game here. They need to ask tough questions to all sides. Educate liberal viewers in a diversity of thought so they can have that dialogue with moderates and even conservatives. I don’t think this is occurring anymore. It’s both sides playing the same game and that will inherently advantage conservatives. When people have uncertainty about something, they tend to go with what they know.