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GPT-5Nov 5, 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 is higher today, especially in Congress and in how partisans feel about each other. But if you look back to the mid‑19th century (the run‑up to the Civil War), the country has been more divided—and far more violent—than it is now. So “worst ever” depends on what you measure.
What’s changed since the late 1970s
•Elite (Congress) polarization: The parties’ roll‑call voting has steadily separated; there’s now almost no ideological overlap between Democratic and Republican members. That’s the most polarized Congress has been since at least the early 20th century.
•Public attitudes: On average, Americans haven’t moved to extreme policy positions across the board, but they have “sorted” so that ideology, identity, and party now line up more consistently. Cross‑party dislike (affective polarization) has risen sharply since the 1980s.
•Behavior: Ticket‑splitting and cross‑party friendships are rarer; elections are more nationalized; straight‑party voting is common.
Why it’s happened
•Party sorting and the long realignment of the South
•Nationalized media and online ecosystems, selective exposure, and elite cue‑taking
•Primaries and donor incentives that reward partisan purity
•Urban–rural and educational divides; racial and cultural conflicts
•Negative partisanship (mobilizing against the other side more than for your own)
Historical perspective
•1930s–1970s: Less polarized parties (with conservative Democrats and liberal Republicans) and more cross‑party legislating.
•1850s–1870s: Far deeper sectional and violent conflict than today.
Bottom line: Today’s polarization is the highest in living memory and in modern congressional records, but not unprecedented in all U.S. history. If you want, I can share a few charts and metrics that track these trends over time.