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GPT-5Oct 21, 2026openai/gpt-5-2025-08-07
Is political polarization worse than it's been in the past?
Short answer: In the United States, polarization is near record highs in the modern era (roughly since World War II), but it’s not unprecedented in all of U.S. history. By several standard measures, it’s worse today (as of 2026) than it was a few decades ago, though periods like the 1850s–60s were more extreme.
How researchers measure it and what they find
•Elite (Congress) ideological polarization: The two parties in Congress are farther apart than at any time in many decades, with almost no overlap between the most conservative Democrats and the most liberal Republicans. Party-line voting is very high and cross-party coalitions are rare compared with mid‑20th‑century norms.
•Public “affective” polarization: Since the late 1970s, Americans have grown markedly colder toward the other party and more willing to view opponents as threatening or immoral. The rise is stronger among the most politically engaged.
•Issue and ideological polarization among the public: It’s mixed. On some identity-laden issues (race, immigration, guns, abortion, climate), gaps have widened. On many specific policies, opinions haven’t become strictly “two camps,” but partisans are better “sorted” so that ideology, party, geography, media diet, and social identity now line up more consistently than in the past.
•Social and geographic sorting: Americans are likelier to live, marry, befriend, and get news within like‑minded communities. Ticket‑splitting and genuinely competitive districts have declined, which reinforces nationalized, team‑based politics.
Historical perspective
•Not the worst ever: The pre–Civil War era, Reconstruction, and parts of the late 19th century saw deeper conflict, including widespread political violence and constitutional breakdowns.
•Why mid‑century looked less polarized: From the 1930s–1970s, party coalitions were cross‑cutting (e.g., conservative Southern Democrats and liberal Northeastern Republicans), which muted visible party distance even when important issues still divided Americans.
Bottom line: Compared with most of the 20th century, polarization today is higher across Congress, public feelings, and social life. It’s likely the highest in the post‑WWII period, but not the most severe in U.S. history. If you want, I can point you to data sets and visuals that track these trends over time.