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GPT-5Oct 9, 2026openai/gpt-5-2025-08-07
Is political polarization worse than it's been in the past?
Short answer: worse than the mid‑20th century, but not the worst in U.S. history.
It depends on what you mean by “polarization”:
•Elite (in Congress): Very high. Roll‑call voting shows Democrats and Republicans with almost no ideological overlap—higher than at any time since the late 19th/early 20th century.
•Public opinion on issues: Mixed. Average Americans aren’t uniformly moving to extremes on every policy, but the parties have “sorted” so liberals are mostly Democrats and conservatives mostly Republicans, leaving fewer cross‑pressured or moderate partisans.
•Affective polarization (feelings toward the other party): Record highs in the survey era (post‑1970s). People like their own side more and increasingly dislike and distrust the other side, even when policy gaps aren’t massive.
•Electoral behavior: More straight‑ticket voting, fewer competitive districts and swing voters, and state/national elections are more “nationalized” than a few decades ago.
Historical perspective:
•Compared with the mid‑20th century (roughly the 1940s–1970s), today’s polarization is clearly worse across most measures.
•Compared with the full sweep of U.S. history, periods like the 1850s–1870s (antebellum/Civil War/Reconstruction) featured deeper sectional divides and far more political violence. So today is severe by modern standards but not unprecedented in the very long run.
Main drivers researchers point to:
•Party “sorting” by race, religion, education, and geography
•Changes in media and social media that amplify partisan identities
•Primary elections and safe districts that reward ideological purity
•Nationalized politics and negative partisanship (motivated more by dislike of the other side than love of one’s own)
If you’d like, I can pull a few current graphs (e.g., congressional polarization scores, affective polarization trends) or dig into causes or reforms that have the best evidence behind them.