Not all conflict is bad. Disagreement — over taxes, education, or policy — is essential to a healthy democracy. But affective polarization isn’t about differing ideas. It’s about identity.

It emerges when people begin to dislike, distrust, or even dehumanize others because of who they are — their ethnicity, region, religion, political affiliation,... See more

Today, political tolerance is harder for many of us than religious tolerance.