"Back in the 1800s, back in before the 20th century, especially in the 1800s, American journalism was a very, very factionalized partisan thing. Political parties had their own newspapers and their own magazines, and every one gave its version of political spin and interpretation. 20th century, for a variety of reasons, not just because we got smarter or more rational, maybe somewhat [of] that, there began being more of a shared set of facts in our media. People disagree violently left, right, center, whatever, but the facts were agreed upon."