Neither the Dems nor the media have ever understood how to deal with his behavior and temperament. He is absolutely unique and can't be treated or covered like a normal, intelligent adult. He is the modern day King Joffrey, and they're absolutely terrified of him. He gives the media objectively easy material to work with, but they know they if they do, they'll completely lose access, they may even lose their license now, and that could make things even worse. It's an impossible situation.
And yeah, add to that the fact that the country is now essentially existing in two separate and competing realities, and there may not be an answer. I understand the Dems' conundrum, but it sure looks like they're just sitting there for the most part.
I'm sad to say that's my guess too. We went from being the "Shining City on a Hill" to an untrustworthy, isolated, predatory nation in just weeks. This has nowhere near played out yet.