I've noticed that national news outlets in the US tend to be better when their preferred party is in power and worse when the opposition is in power. I suspect it's because in the latter case the news outlets slant all of their coverage towards negativity and discrediting the opposition.

I thought CNN was much more tolerable during the Obama administration, but watching them over the last few years has consistently left my frustrated. Meanwhile, the reverse has been true for Fox News. That said, I don't consume much from either outlet.