The best analysis of political polarization in the US (Red Tribe vs. Blue Tribe) that I have seen to date. Jonathan Haidt argues that political ideology and party affiliation are the major dividing lines in American politics, with race and class being a distant second, and religion and gender being an ever further distant third.
Featuring Jonathan Haidt, PhD, New York University, “What Is Happening to Our Country? How Psychology Can Respond to Political Polarization, Incivility and Intolerance”
