The media has two goals.
For one, it wants to help Democrats get elected. This isn’t tinfoil hat speak at this point. This isn’t a conspiracy theory. America is fully aware of what the media is about at this point and the media itself is doing very little to hide it.
The second goal is to make money and to make money it needs to make advertisers think that their ads are going to be seen by a lot of eyes so that said advertisers will pay them for the privilege of being seen by their audience. This means that it must put on interesting and dynamic programming in order to make you pay attention to it.