Is political polarization worse than it's been in the past?
I’ll look up recent studies, historical data, and expert analyses on political polarization trends to compare current levels with the past.Next I’ll pull details from key studies and Pew reports for precise historical comparisons.Yes, by most measurable standards—particularly in the United States—political polarization is worse today than it has been for decades (at least since the mid-to-late 20th century), though it is not unprecedented in American history and nuances exist depending on the type of polarization and the comparison period.[1]
Polarization takes several forms: ideological (gaps in policy views), affective (emotional dislike or animosity toward the other side), partisan sorting (ideology aligning tightly with party identity), and elite/congressional levels. Data from Pew Research, academic studies (including recent Cambridge University work using American National Election Studies data), DW-NOMINATE scores for Congress, and feeling thermometers consistently show rises in these areas, especially since the 1970s–1990s and accelerating after ~2008.[2]
Key Evidence from Recent Decades
Pew data shows the share of Americans with consistently liberal or conservative views doubled from ~10% in the 1990s to ~21% by the mid-2010s, with the ideological center shrinking and overlap between parties nearly vanishing (e.g., 92–94% of one party’s members now fall to one side of the other’s median). Partisan gaps have grown on climate, abortion, and other issues.[3]
Negative partisanship (voting against the other side more than for one’s own) has risen across many democracies since the end of the Cold War, accelerating after 2008 and 2016, though the US shows one of the largest increases.[6]
Historical Context: Not Completely Unprecedented
America has seen intense divisions before:
Comparisons to the distant past are imperfect because of different measurement tools, media environments, and issue sets. Some argue today’s polarization partly reflects progress (e.g., expanded rights for minorities, women, LGBTQ people creating backlash and identity alignment). Others note it can feel worse due to constant media amplification, even if average Americans are not fully “tribal” on every issue.[13]
Drivers and Caveats
Common explanations include: partisan media and social media incentives favoring outrage/culture-war content; geographic/demographic sorting; elite cue-taking and primary systems rewarding extremes; declining external threats or shared prosperity narratives; economic shocks (e.g., 2008); and identity politics aligning race, religion, education, urban/rural divides with party. The US’s equal left/right balance intensifies the sense of stalemate.[8]
Caveats: Not all Americans are polarized—the most engaged/ideological are, amplifying the effect in politics and media. Some studies find polarization is more about sorting and affective dislike than pure mass ideological extremism on every issue. Global trends vary (rising in parts of Europe via challenger parties, but not uniformly). Recent data sometimes shows stabilization. Policy agreement still exists in places, and everyday life often transcends politics.[14]
In short, relative to the relatively depolarized mid-to-late 20th century baseline that many living adults remember or compare against, yes—polarization (especially affective and elite) is worse and has intensified in the 21st century. It rivals some of the more divided eras short of civil war-level rupture, driven by structural and technological changes. Whether it continues, plateaus, or reverses depends on media, leadership, institutions, and external factors.
Citations (14)
- https://www.eurekalert.org/news-releases/1114750
Backs: “I’ll look up recent studies, historical data, and expert analyses on political polarization trends to compare current levels with the past.Next I’ll pull details from key studies and Pew reports for precise historical comparisons.Yes, by most measurable standards—particularly in the United States—political…”
statistic, article, points to yes. Claim: Cambridge study found issue divisions rose 64% since 1988, mostly after 2008; polarization is worse than in recent decades.
- https://www.cam.ac.uk/stories/political-division-united-states
Backs: “Data from Pew Research, academic studies (including recent Cambridge University work using American National Election Studies data), DW-NOMINATE scores for Congress, and feeling thermometers consistently show rises in these areas, especially since the 1970s–1990s and accelerating after ~2008.”
evidence, article, points to yes. Claim: Cambridge work using American National Election Studies data shows rising ideological and affective polarization and sorting since the 1970s-1990s.
- https://www.pewresearch.org/politics/2014/06/12/political-polarization-in-the-american-public/
Backs: “Pew data shows the share of Americans with consistently liberal or conservative views doubled from ~10% in the 1990s to ~21% by the mid-2010s, with the ideological center shrinking and overlap between parties nearly vanishing (e.g., 92–94% of one party’s members now fall to one side of the other’s median).”
statistic, article, points to yes. Claim: Pew: consistently liberal or conservative Americans doubled from ~10% to ~21%; party overlap nearly vanished (92–94%).
- https://www.newsweek.com/americans-used-to-like-presidents-from-other-party-what-happened-12307504
Backs: “Highly negative views of the opposing party more than doubled since 1994; many now see the other side as a threat to the nation’s well-being, immoral, or worse. Presidential approval gaps are at or near historic highs (e.g., 70–80+ point partisan divides for recent presidents vs.”
evidence, article, points to yes. Claim: Presidential approval partisan gaps are at or near historic highs versus smaller gaps under Eisenhower or Kennedy.
- https://goodauthority.org/news/americans-views-of-the-opposite-party-have-declined-even-further/
Backs: “Presidential approval gaps are at or near historic highs (e.g., 70–80+ point partisan divides for recent presidents vs. much smaller gaps under Eisenhower or Kennedy).”
statistic, article, points to yes. Claim: Views of the opposite party have declined further; highly negative views more than doubled since 1994.
- https://www.economist.com/interactive/essay/2024/10/31/when-politics-is-about-hating-the-other-side-democracy-suffers
Backs: “much smaller gaps under Eisenhower or Kennedy). Negative partisanship (voting against the other side more than for one’s own) has risen across many democracies since the end of the Cold War, accelerating after 2008 and 2016, though the US shows one of the largest increases.”
evidence, article, points to yes. Claim: Negative partisanship has risen across many democracies since the Cold War, with the US showing one of the largest increases.
- https://www.pewresearch.org/short-reads/2022/03/10/the-polarization-in-todays-congress-has-roots-that-go-back-decades/
Backs: “Both parties became more cohesive; Republicans shifted more strongly conservative on average, Democrats modestly more liberal. Geographic/demographic”
evidence, article, points to yes. Claim: Congressional Democrats and Republicans are farther apart ideologically than in the past 50 years, with moderate overlap gone.
- https://www.ft.com/content/50603d73-49fe-4d2d-b9e9-5cfe39be0353
Backs: “Media (cable news, social media) and elite cues amplify cultural issues. Polarization has spread somewhat to other Western countries but is especially intense in the US due to its roughly equal-sized left/right clusters and two-party system.”
evidence, article, points to yes. Claim: Media, elite cues and equal left/right clusters drive intense US polarization and its spread to other Western countries.
- https://www.pnas.org/doi/10.1073/pnas.2516942122
Backs: “Polarization has spread somewhat to other Western countries but is especially intense in the US due to its roughly equal-sized left/right clusters and two-party system.”
evidence, article, points to yes. Claim: Polarization has spread somewhat to other Western countries.
- https://bgindependentmedia.org/nation-is-as-polarized-as-it-was-after-civil-war-political-scientist-tells-bgsu-audience/
Backs: “Some scholars (e.g., Nolan McCarty) note congressional polarization today approaches post-Civil War levels, and affective measures (e.g., discomfort with opposite-party marriage) echo mid-20th-century interracial marriage attitudes. However, today’s conflicts lack the same existential,”
attribution, article, neutral. Claim: Scholar Nolan McCarty notes congressional polarization approaches post-Civil War levels; affective measures echo mid-20th-century interracial marriage attitudes.
- https://www.cnn.com/2026/07/05/politics/trump-july-4-america-250-civil-war-analysis
Backs: “However, today’s conflicts lack the same existential, zero-sum territorial stakes for most people, and the country is not “militarily divided.””
evidence, article, points to no. Claim: Today's conflicts lack the existential, territorial stakes of the Civil War era, so polarization is not unprecedented.
- https://archive.is/2026.07.05-104443/https://edition.cnn.com/2026/07/05/politics/trump-july-4-america-250-civil-war-analysis
Backs: “The mid-20th century (roughly 1940s–1960s/early 1970s) was relatively less polarized by modern metrics—more ideological overlap in parties, bipartisan deal-making possible, and warmer cross-party presidential approval—partly due to the “New Deal” consensus, Cold War external threats, and less sorted parties…”
evidence, article, points to yes. Claim: Mid-20th century was less polarized due to New Deal consensus, Cold War threats and less sorted parties; polarization rose from the 1970s.
- https://www.nytimes.com/2026/10/13/opinion/trump-democracy-political-polarization.html
Backs: “Some argue today’s polarization partly reflects progress (e.g., expanded rights for minorities, women, LGBTQ people creating backlash and identity alignment).”
attribution, article, neutral. Claim: Some argue polarization reflects progress and backlash, or feels worse due to media amplification.
- https://news.syr.edu/2025/10/23/the-great-divide-understanding-us-political-polarization/
Backs: “Some studies find polarization is more about sorting and affective dislike than pure mass ideological extremism on every issue. Global trends vary (rising in parts of Europe via challenger parties, but not uniformly).”
evidence, article, neutral. Claim: Caveats: not all Americans are polarized, global trends vary, and recent data sometimes shows stabilization.