Is political polarization worse than it's been in the past?
Yes, by multiple key measures—especially in the United States over recent decades—political polarization is worse than it has been for much of the modern era (post-WWII or since the 1970s–1990s), though the U.S. has experienced intense divisions before (e.g., around the Civil War, early republic, or late 1960s), and the current form has distinctive features.[1][2]
Polarization is multidimensional: it includes ideological (issue positions and consistency), partisan sorting (alignment of ideology with party), elite/congressional (voting and behavior of politicians), and affective (emotional dislike or animosity toward the other side). Data from sources like Pew Research Center, American National Election Studies (ANES), DW-NOMINATE scores, and academic studies consistently show rises, particularly since the 1990s or post-2008.
Congressional/Elite Polarization
In Congress, Democrats and Republicans are farther apart ideologically than at any point in the past 50 years, with the gap wider than much of the 20th century and approaching or exceeding levels not seen since Reconstruction-era Congresses in some analyses.[3][3]
Public Ideological Polarization and Sorting
Among the public, issue-based divisions and consistency have grown, with a notable spike after 2008.
Geographic sorting (people living in more homogeneous areas) and like-minded discussion networks have also increased, though cross-cutting conversations have not necessarily declined in absolute terms.[11][2]
Affective Polarization (Animosity)
This has risen sharply and is often what makes polarization “feel” worse.
Historical and Comparative Context
The U.S. has no golden age of unity—regional, racial, economic, and cultural divides have always existed. The Civil War era was far more extreme (actual secession and war). Periods like the Adams/Jefferson years or late 1960s involved intense friction, and some analysts argue today’s substantive divides are not uniquely deep.[1]
What stands out today:
Caveats: Not all Americans are highly polarized—many hold mixed views and prefer compromise, though they are less engaged. Divisions remain “fuzzy” rather than absolute tribes on every issue. Some data suggest recent stabilization or slight dips. Measures can emphasize different aspects (e.g., sorting vs. true extremity of views), and perceptions of polarization can themselves worsen it. Asymmetric patterns appear in some data (e.g., stronger leftward public shift on social issues vs. elite rightward moves).
In short, recent decades show clear worsening on elite cohesion, public sorting/consistency, issue gaps (especially post-2008), and especially mutual dislike—making politics more gridlocked, personal, and antagonistic than in the relatively less polarized mid-to-late 20th century. It echoes past high-polarization eras in intensity but differs in media environment, equal camp sizes, and how thoroughly it permeates daily life. Trends are not inevitable and have ebbed before.
Citations (13)
- https://www.cnn.com/2026/07/05/politics/trump-july-4-america-250-civil-war-analysis
Backs: “Yes, by multiple key measures—especially in the United States over recent decades—political polarization is worse than it has been for much of the modern era (post-WWII or since the 1970s–1990s), though the U.S. has experienced intense divisions before (e.g., around the Civil War, early republic, or late 1960s), and…”
- https://scienceinsights.org/how-political-polarization-has-changed-over-time/
Backs: “Yes, by multiple key measures—especially in the United States over recent decades—political polarization is worse than it has been for much of the modern era (post-WWII or since the 1970s–1990s), though the U.S. has experienced intense divisions before (e.g., around the Civil War, early republic, or late 1960s), and…”
- https://www.pewresearch.org/short-reads/2022/03/10/the-polarization-in-todays-congress-has-roots-that-go-back-decades/
Backs: “In Congress, Democrats and Republicans are farther apart ideologically than at any point in the past 50 years, with the gap wider than much of the 20th century and approaching or exceeding levels not seen since Reconstruction-era Congresses in some analyses.”
- http://www.rochester.edu/college/faculty/alexander_lee/wp-content/uploads/2026/05/How_Polarization_Ends-12.pdf
Backs: “Historical peaks occurred in the First Party System (1790s–1820s) and around the Civil War/late 19th–early 20th century, followed by periods of lower polarization (e.g., mid-20th century with cross-party coalitions).”
- https://www.eurekalert.org/news-releases/1114750
Backs: “Polarization may have begun leveling off recently but remains much higher than prior decades. Sorting into party/ideological labels also rose sharply.”
- https://www.cam.ac.uk/stories/political-division-united-states
Backs: “Polarization may have begun leveling off recently but remains much higher than prior decades. Sorting into party/ideological labels also rose sharply.”
- https://www.pewresearch.org/politics/2017/10/05/1-partisan-divides-over-political-values-widen/
Backs: “Gaps widened on issues like climate, guns, abortion, and government role.”
- https://www.pewresearch.org/politics/2014/06/12/political-polarization-in-the-american-public/
Backs: “Gaps widened on issues like climate, guns, abortion, and government role.”
- https://www.nature.com/articles/s41562-025-02251-0
Backs: “Demographic groups have sorted into parties, though some latent value divides (e.g., moral/religious) have been relatively stable while partisan alignment with them has risen.”
- https://fsi.stanford.edu/news/polarization-united-states-reconsidered
Backs: “Demographic groups have sorted into parties, though some latent value divides (e.g., moral/religious) have been relatively stable while partisan alignment with them has risen.”
- https://www.pnas.org/doi/10.1073/pnas.2516942122
Backs: “Geographic sorting (people living in more homogeneous areas) and like-minded discussion networks have also increased, though cross-cutting conversations have not necessarily declined in absolute terms.”
- https://goodauthority.org/news/americans-views-of-the-opposite-party-have-declined-even-further/
Backs: “In-party ratings stayed relatively stable; the rise is mostly out-group dislike.”
- https://web.stanford.edu/~gentzkow/research/cross-polar.pdf
Backs: “The U.S. shows one of the largest increases among OECD countries over recent decades.”