Democrats and Republicans are sorting ideologically and socially and we’re developing more negative opinions of one another. Are we dividing into two irreconcilable tribes—or just tuning out both parties? Liliana Mason talks about new research showing our partisan identity is stronger when our ethnic, religious, and ideological identities are strong and linked to our party’s predominant groups. But John Barry Ryan says many citizens dislike both parties and want to tune out of politics, hating the other party only a bit more than their own.