Matt Taibbi and Greenwald are as far from what you're describing as a reporter can get. Neither has any loyalty to either party and skewer them all regularly.
Yes, the corporate networks are bought and paid for. Cable outlets the same. Every print rag coast to coast, all in bed with one or the other, but there are independents that just call it as they see it without regard to who will like it. Taibbi and Greenwald fit that bill.
Let’s be clear here, both Greenwald and Taibbi are not exactly news reporters. A lot of their stuff is offbeat.
Considering that, it's pretty easy to see why the country is so completely fucked up.