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GPT-5Oct 22, 2026openai/gpt-5-2025-08-07

Is political polarization worse than it's been in the past?

Short answer: Compared with most of the 20th century, yes—polarization in the United States today is higher, especially among political elites and in how partisans feel about each other. Compared with the mid‑19th century (the 1850s/Civil War era), probably not.

What the evidence shows (mainly for the U.S.; tell me if you meant another country):

•Elite polarization: In Congress, roll‑call voting indicates the parties are farther apart than at any time since the early 1900s, with almost no ideological overlap between Democrats and Republicans.
•Mass ideology vs. “sorting”: Average voters are not uniformly moving to policy extremes, but liberals now vote overwhelmingly Democratic and conservatives overwhelmingly Republican. The old mix (e.g., conservative Democrats, liberal Republicans) has largely disappeared, and straight‑ticket voting is near modern highs.
•Affective polarization: Partisans’ feelings toward the other party have grown markedly colder since the late 20th century. Dislike and distrust of the opposing party (“negative partisanship”) have risen faster than substantive policy disagreement.
•Geographic polarization: Urban and rural places vote more uniformly for different parties than a few decades ago, producing more “landslide” counties and safer seats.
•Drivers often cited: party realignment since the civil‑rights era; nationalized media and social media; elite cues and negative campaigning; primary electorates; and district safety (which encourages members to fear their own primary more than the general). Gerrymandering contributes to safe seats but is not the main cause of national‑level polarization.
•Consequences: More gridlock and “constitutional hardball,” fewer cross‑party coalitions, and heightened zero‑sum perceptions of politics.

Historical perspective:

•Mid‑20th century America (roughly the 1940s–1970s) was unusually depolarized in Congress by historical standards; today is significantly more polarized than that era.
•The 1850s and Reconstruction periods featured deeper sectional divides and far more political violence than today. So in a very long‑run view, today’s polarization is severe but not unprecedented.

If you’d like, I can share charts on congressional polarization and voter “feeling thermometer” trends, or compare the U.S. with other democracies.

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