However divided you think our politics are, this chart shows that it’s actually way worse

A wide-ranging new analysis of congressional-floor speeches finds that political polarization has "exploded" over the past 20 years, and is now "far greater today than at any point in the past."
The study, by economists at Stanford and Brown universities and the University of Chicago, analyzed the entirety of the congressional record going back to 1873. The researchers built a sophisticated model capable of measuring how easy it would be for a typical listener to guess a speaker's political party based on the words the speaker used in one...