You can disagree with someone about taxes and still enjoy their company. But increasingly, many Americans say they dislike, distrust, or even fear people in the opposing political party, not because of a specific policy, but because of who those people are assumed to be.
Researchers have a name for this shift: affective polarization. It helps explain why political conversations can feel so personal, and why so many people feel more divided than their actual views would suggest.
Quick answer: Affective polarization is the growing emotional hostility between political groups: disliking and distrusting the other party’s supporters as people, not just disagreeing with their positions. “Affective” means “relating to feelings.” It differs from ideological polarization, which measures how far apart people are on issues. In the U.S., long-running surveys show warmth toward the opposing party has declined for decades, and it is driven by identity, media, and political incentives.
What is affective polarization, exactly?
Affective polarization is the tendency to feel positively toward your own political side and negatively toward the other, and for those feelings to grow stronger over time. The word “affective” comes from psychology and simply means related to emotion.
The idea is that politics stops being only a debate about ideas and becomes a contest between teams. Supporters of one party start to see supporters of the other as untrustworthy, selfish, or even a threat to the country.
Researchers typically measure it in a few ways:
- Feeling thermometers: surveys ask people to rate their warmth toward each party on a scale from cold to warm.
- Social distance: how comfortable someone would be with a neighbor, friend, or in-law from the other party.
- Trait ratings: whether people describe the other party’s supporters as, for example, honest, intelligent, or hypocritical.
None of these measures asks what you believe about a bill or a budget. They ask how you feel about people. That is the whole point.
Ideological vs. affective polarization: a key distinction
People often use “polarization” to mean two different things. Separating them clears up a lot of confusion.
| Type | What it measures | Example question |
|---|---|---|
| Ideological polarization | Distance between groups on issues and values | How far apart are the parties on immigration or the size of government? |
| Affective polarization | Emotional distance: dislike, distrust, hostility | Would you be upset if your child married someone from the other party? |
The two are related but not identical. Scholars debate how much the parties have moved apart on policy, and the answer depends on the issue and the measure. What many studies agree on is that the emotional gap has grown substantially, and in some analyses faster than the policy gap.
That matters because you can solve a policy disagreement with a compromise. It is much harder to compromise with people you believe are fundamentally bad.
You can split the difference on a budget. It is much harder to split the difference with someone you have decided is your enemy.
Why does it happen? The forces behind the feeling
No single villain explains affective polarization. It emerges from several systems and incentives that reinforce each other. Researchers debate how much weight each deserves, but these are the most commonly discussed factors.
Party identity has become a bundle
Decades ago, party membership cut across other parts of life. A person’s party might not predict their religion, neighborhood type, or even their views on every issue. Since roughly the late twentieth century, party affiliation has increasingly lined up with other identities, including geography, religion, education, and race. Social scientists call this “sorting.”
When one label stands for many identities at once, a political loss can feel like a threat to who you are. This is the engine of the “team” feeling. For deeper background on how the parties and coalitions changed over time, see our plain guide to American history that explains today.
Our psychology likes teams
Human beings form in-groups and out-groups quickly, even over trivial things. Experiments going back decades show that people favor their own group even when the groups are arbitrary. Politics offers a ready-made, high-stakes version of that instinct.
Media and social platforms reward outrage
Many news outlets and social platforms earn money from attention, and attention tends to flow toward conflict, anger, and fear. This does not require anyone to be dishonest. It only requires that the content that gets shared gets rewarded. To understand how those incentives shape what you see, read our media literacy guide.
Campaigns and fundraising favor the fight
Political organizations often raise money and mobilize voters by emphasizing what the other side would do if it won. Fear is a strong motivator. That is not unique to one party, and it is a rational strategy in a system where turnout and donations decide outcomes. For more on how this plays out, see who has power in America.
Election rules create high stakes
In a system with two dominant parties and many winner-take-all contests, politics can feel zero-sum: if they win, we lose. Features like primaries and district lines can also reward more intense partisans. Our explainers on primary elections and gerrymandering show how those mechanics work.
The perception gap: how we misjudge the other side
One of the most hopeful findings in this field is that people tend to get the other side wrong. Surveys and studies on “false polarization” or “perception gaps” suggest that Americans often overestimate how extreme, hostile, and uniform the opposing party is.
Part of the reason is that we mostly encounter the other side through its loudest members, or through summaries written by our own side. A quiet neighbor who votes differently rarely announces it, while a viral post from an angry stranger travels far.
The result is that people carry a cartoon of the other party in their heads, and then react to the cartoon. We explore this in depth in perception gap politics. It also helps explain why surveys often find more common ground than the headlines suggest, a theme in what Americans agree on.
Think about it: Picture the typical supporter of the other party. Where did that picture come from: people you actually know, or things you have seen online and on TV? How might it change if you could only use your own direct experience?
What does the evidence say about the effects?
It helps to separate what is well documented from what is still debated.
What researchers broadly find
- Warmth toward the opposing party has declined over several decades in long-running U.S. surveys.
- Many people report less comfort with cross-party friendships, neighbors, or marriages than they did in the past.
- Partisan feelings can influence everyday judgments, such as how people rate the same economic conditions depending on who holds power.
What is more contested
- How much of the trend is driven by media versus party sorting versus other causes.
- Whether hostility mainly lives in highly engaged partisans or is more widespread.
- How closely survey feelings translate into real-world behavior, such as discrimination or political violence.
Honest researchers disagree on these questions, and the numbers differ by survey and year. For current figures, look to recent releases from sources such as the American National Election Studies or Pew Research Center.
Disagreement is how a free country works. Contempt is what happens when disagreement becomes who we think we are.
Is some partisan feeling healthy?
Not all of it is a problem, and it is worth being fair about that. Caring deeply about politics can motivate people to vote, volunteer, and hold leaders accountable. Strong convictions on moral questions are not a flaw.
Some argue that intense feeling reflects real stakes: when the issues involve rights, safety, or livelihoods, passion is understandable. Others argue that when the dislike attaches to people rather than positions, it makes cooperation harder and lets leaders avoid accountability because their side will forgive almost anything.
Both points have merit. The question is not whether to care but whether caring has curdled into contempt for fellow citizens. A republic depends on people who disagree continuing to live, work, and govern together. Our piece on republic vs. democracy touches on why that matters.
What can reduce it? Practical steps
You cannot fix a national trend alone, but research and common sense point to a few things that help at a personal and community level.
- Check your cartoon. Ask what the other side would say is its own best reason for its view, then compare it to the version you usually hear.
- Practice steelmanning. State the strongest version of an opposing argument before responding. Our guide to steelmanning shows how.
- Talk in person, with curiosity. Questions beat verdicts. Our guides on having a civil conversation and talking about politics with family offer concrete scripts.
- Work on something shared. Shared goals tend to soften group lines. Try finding local volunteer work that fits your life, or learn about mutual aid and neighbors helping neighbors. For ideas, see how to get involved in your community.
- Change your information diet. Notice which sources make you angriest, and why. Anger is not always a sign of accuracy.
- Take care of yourself. Constant outrage is exhausting. See how to deal with political anxiety without tuning out.
None of this requires abandoning your views. It asks only that you keep the other person in view as a person.
Why it matters for how the country works
Government is designed around the assumption that people with different interests will bargain. When each side views the other as illegitimate, bargaining feels like betrayal, and norms that rely on mutual restraint can erode. It also makes citizens easier to mobilize through fear and harder to persuade through argument.
The good news is that the system itself is built to survive disagreement. To see how, explore how the U.S. government works and separation of powers. Understanding the machinery makes it easier to argue about what the machine should do without assuming the worst about the people who disagree.
If you want to go deeper, browse our Bridging the Divide section or pick up a title from our reading list by theme.
Key takeaways
- Affective polarization is emotional hostility toward the other party’s supporters, distinct from policy disagreement.
- It is driven by identity sorting, group psychology, attention-driven media, campaign incentives, and high-stakes election rules, not by a single cause or villain.
- People often overestimate how extreme and hostile the other side is, a gap that real contact can narrow.
- Strong political conviction is not the problem; contempt for fellow citizens is.
- Steelmanning, curious conversation, shared projects, and a mindful information diet can all help at the personal level.
Frequently asked questions
What is affective polarization in simple terms?
It is the growing emotional dislike and distrust people feel toward the opposing political party, separate from whether they disagree on specific policies. Researchers measure it by asking people how warmly or coldly they feel toward each party and its supporters, and how comfortable they would be with a neighbor or in-law from the other side.
What is the difference between ideological and affective polarization?
Ideological polarization is about distance on issues: how far apart people are on taxes, immigration, or health care. Affective polarization is about feelings: how much you like or trust the other side. The two can move separately. People can disagree modestly on policy yet feel intense hostility, and the research suggests the feelings have grown faster than the policy gaps.
Is affective polarization getting worse in the United States?
Survey series that track how warmly Americans feel toward each party, such as the American National Election Studies, show a long-term decline in warmth toward the opposing party since roughly the 1980s. Exact numbers vary by survey and year, so check recent releases from sources like ANES or Pew Research Center for current figures.
Do most Americans really hate the other party?
Not exactly. Many people dislike the other party’s leaders or activists, but research on perception gaps finds that people tend to overestimate how extreme and hostile the other side is. Most Americans are not intensely partisan, and the loudest voices in media and politics are not a representative sample.
Can affective polarization be reduced?
Evidence suggests it can be eased, especially by correcting misperceptions about the other side, by meaningful contact across political lines, and by shared goals like community projects and mutual aid. Effects from short interventions are often modest and may fade, so lasting change likely depends on repeated, real-world connection rather than one-time fixes.