The current consensus in psychology is that political conservatives are uniquely simple-minded. Indeed, even the famous critic of political bias and Heterodox contributor Jonathan Haidt (and colleagues) suggested that there is a “consistent difference between liberals and conservatives” on several measurements related to cognitive complexity (Joseph, Graham, & Haidt, 2009, p. 176).

My previous blog post covered new research showing that liberals and conservatives are prejudiced against one another to an equal degree. In this post, I will review evidence that liberals’ and conservatives’ prejudices lead them to dehumanize their political opponents—that is, to see them as less than human.