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GPT-5Sep 23, 2026openai/gpt-5-2025-08-07
Is political polarization worse than it's been in the past?
Leans yesSays it is contested
Short answer: In the United States, polarization today is near historic highs on some dimensions—though not every kind of polarization is “worse than ever,” and earlier eras (e.g., the 1850s–1870s) were more violent.
What the evidence shows
•Elite (Congress) polarization: The ideological distance between the parties in roll‑call votes has climbed steadily since the late 1970s and is now at or near the highest levels observed since the late 19th century.
•Public opinion on issues: Average policy views have sorted some, but large, across‑the‑board ideological shifts among the general public are more modest than in Congress.
•Affective polarization: Feelings toward the other party have grown substantially more negative since the 1980s; people are more likely to see the other side as a threat or immoral, even when policy gaps aren’t huge.
•Electoral geography: Fewer competitive districts and more “safe” seats; nationalized media and straight‑ticket voting mean fewer split outcomes than mid‑20th‑century elections.
•Historical context: The mid‑20th century (roughly the 1940s–1970s) was unusually low in polarization because each party housed both liberals and conservatives. Go back further and you find periods—especially around the Civil War and Reconstruction—where conflict and breakdown were worse in terms of violence and democratic stability, even if today’s measured ideological distance in Congress is comparable or higher.
Bottom line: Compared to most of the last 120 years, partisan division among political elites and mutual dislike among voters are exceptionally high today. But the United States has experienced earlier periods with more severe instability and violence. If you had a different country or a specific era in mind, tell me and I’ll tailor the comparison.