"We're so freaking polarized": See how Americans with opposing views interpret the same situation

This year, some Republicans have accused Democrats of wanting "to destroy the country" and "spewing hatred," while some Democrats can be heard saying Republicans are "fascists, ruining this country" — a far cry from what would be called ideological debate.

A growing number of researchers believe politics has the ability to alter one's perception of reality and others.

"It's getting worse, and I don't see it unwinding anytime soon," said New York University psychology professor Jay Van Bavel. "Political identities are one of the most important and powerful identities...