> Maybe this has to do with the leftward trend of the mainstream press.

What? Media in the USA has staggered to the right over the past ten years. The only reason it was called liberal before that was because one party used facts and data and the other preferred to rig the system against the common people. While Stephen Colbert made the joke "Reality has a well known liberal bias" it's joke only in that the conservative viewpoint today seems focused on imaginary problems and denying the existence of real ones.