Bear in mind the U.S. has two main political parties; the right-wing one, and the even more right-wing one. The U.S. papers simply can't afford to be centrist or leftist.
Some introductory reading: "Politics: Comtemporary" in http://moldbuggery.blogspot.com/2009/03/collected-writings-o...
To be fair, I didn't need to wear a tinfoil hat when reading _every_ paragraph!