Because the media likes Republicans and wants them to win.
Because the Enemy Of The People Media gets more money when clowns like Trump are in power. Therefore, they invent sh**t to get him back it.
"The media" is only giving consumers what they are asking for (and what they have rewarded in the past).
GMac is right that a problem for Democrats here and in other issues is an asymmetry where a large part of the D coalition is addicted to miserable news and, as a corollary, isn't interested in positive news because it doesn't fit in with the aesthetic they want to project. Meanwhile, there's a large part of the GOP base that's willing to spread and parrot whatever message fits with their strategic aims.
