In 1994, 17% of Republicans and Republican-leaning independents held a very unfavorable view of the Democratic Party. By 2014, that share had reached 43%, according to Pew Research Center. This is one of many examples of political polarization, but it measures feelings about a party rather than the policy positions of its voters. Political polarization in the United States has several dimensions, and they do not always move together.
Political Polarization in America: What the Term Means
To define political polarization, it helps to begin with the distance or division between political groups: they may disagree more about issues, sort more consistently into opposing parties, or feel greater hostility toward one another. Each pattern raises a different question, and each requires a different measure.
Disagreement is a normal feature of politics. A dispute over taxes, for instance, becomes evidence of a growing divide when positions move further apart or when a larger gap opens between identifiable groups. Even then, a survey must show whose views are being measured and how. A difference between party leaders is not automatically the same as a difference between all voters.
Political polarization examples can involve voting in Congress, the public’s answers to policy questions, or attitudes toward supporters of the other party. A close look at the measure prevents a sharp headline about one of these patterns from being mistaken for proof of all three.
Differences in political views
One approach compares opinions on particular questions. Suppose two groups become further apart on the role of government in health care: the widening gap describes a change on that issue. It does not establish that every member of either group holds an extreme position, or that the same gap exists on every other topic.
Pew’s 2014 study of political values combined responses to 10 questions in a scale of ideological consistency. The share of Americans with consistently liberal or consistently conservative answers rose from 10% in 1994 to 21% in 2014. Meanwhile, the share with a roughly equal mix of liberal and conservative responses fell from 49% to 39%.
Those numbers are examples of polarization in political values, not a direct count of people at extreme ends of every policy debate. As Pew explains, holding consistently liberal or conservative answers across its questions does not necessarily mean holding the most extreme possible position on each issue. The questions and the way they are combined determine what the scale can show.
Party sorting is a different change
Party sorting occurs when political identities and views become more closely aligned. If conservatives who once belonged to both parties increasingly identify with Republicans, and liberals increasingly identify with Democrats, the parties can become more distinct even if individual opinions do not all become more extreme. People may change party identification, change their views, or enter and leave the electorate.
The same 2014 Pew study found less overlap between partisans on its 10-question scale. In 1994, 23% of Republicans were more liberal than the median Democrat; in 2014, 4% were. Pew’s partisan groups included independent respondents who leaned toward a party. The median is the middle position in a group, so the comparison describes relative placement on that particular scale rather than an exact distance between individual beliefs.
This is a useful example of political polarization in the U.S.: party labels had become more closely associated with the measured set of views. It does not establish which individual mechanism caused the shift, and it leaves room for people with mixed views in both parties.
Hostility toward the other side
Political polarization in America also appears in how people regard one another. Affective polarization refers to negative feelings toward a political out-group, often measured alongside warmth toward one’s own group. A person may be relatively moderate on a policy and still distrust the opposing party’s supporters. Conversely, two people can disagree strongly over policy while respecting each other.
In a 2022 Pew survey, 83% of Democrats described Republicans as a lot or somewhat more closed-minded than other Americans; 69% of Republicans said the same about Democrats. The respondents were expressing comparative judgments about people, not identifying a specific policy disagreement. The results illustrate a pattern of American political polarization in social attitudes as well as partisan competition.
These figures also have limits. An answer about a broad party label may reflect views of prominent politicians, activists, or acquaintances in different proportions. It cannot show exactly how any respondent would treat a particular neighbor. The definition of political polarization is more informative when it names the object of the attitude and the group answering the question.
Why the distinction matters
These examples of polarization in politics point toward different explanations and responses. Political leaders may emphasize disagreements to mobilize supporters; social identities and media choices may also shape how people interpret the other side. Sorting, policy change, and hostility can reinforce one another, but a single survey cannot establish which factor started the process.
The distinction matters for democratic institutions too. Elected officials can disagree sharply and still negotiate rules or accept election results. Deep distrust can make cooperation harder and encourage people to interpret an opponent’s actions in the worst light. At the same time, pressure to agree should not erase substantive disputes about rights, representation, or public policy.
Does polarization mean everyone is moving apart?
No. Groups can become more distinct on average while many individuals remain in the middle or hold a mixture of views. The most reliable interpretation identifies the issue, the population, and the period before drawing conclusions about a wider society.