CNN and other left-of-center media organizations would do themselves a favor by at least holding their tongue on areas where they are too explicitly demonstrating their bias. The way their pundits make ad hominem remarks against the president every other story serves no purpose but to further aggravate the conservative right. It so obviously dilutes whatever message is attempted to be conveyed, turning what should be considered "news" into a pornography of entertainment that further divides our country. It's so blatantly destructive and should be so easy to filter out; but they create soundbite after soundbite that is cannon fodder for the other side.
Publications like the Economist are critical of the president but not in an antagonizing, ad hominem way. If more of the 'mainstream media' would follow that approach, more of their message would get through to the other side rather than adding fuel to their fire.
So that means the US has a big (political) porn addiction problem. Hey, it kinda works.
The difference is that the left-leaning news institutions make up the bulk of the "mainstream media" and they're now just a mirror-image of fox news. And their winning strategy in 2020 is not to become the clone of the right's repugnant rhetoric. The winning strategy should be to convert the moderates or those slightly right of center; yet the more they assume the shape of Fox News the less disingenuous they appear, which makes this task ever less likely. I literally have friends who were life long liberals 4 or 5 months ago who got sucked into some strange corners of the conspiratorial right wing web and many of their grievances are against the mainstream media. Many of which are hard to argue against.