Negative partisanship is when a person’s political behavior is driven more by dislike, fear, or opposition toward another political party than by support for their own. A negative partisan may vote for a candidate not because they particularly like that candidate, but because they strongly want to prevent the opposing party from winning. In this way, negative partisanship turns political competition from “I want my side to win” into “I need the other side to lose.” It can intensify polarization because political opponents increasingly come to be viewed as threats rather than simply people with different political preferences.
Ordinary partisanship is relatively straightforward. A partisan supports, advocates for, or aligns with a particular political party or candidate. They might identify as a Democrat or Republican because they agree with the party's policies, prefer its candidates, or want the party to gain political power.
Negative partisanship reverses the emphasis.
Instead of asking:
How much do I like my party?
The more important question becomes:
How much do I dislike the other party?
A voter experiencing negative partisanship might be disappointed with their own party's candidate but still enthusiastically vote for them because they strongly oppose the alternative. Their vote is motivated less by what they hope their own party will accomplish and more by what they fear might happen if the opposing party takes power.
In other words, you don't necessarily have to love your team. You just have to really want the other team to lose.
The difference comes down to what motivates your political loyalty.
With ordinary partisanship, political participation can be driven primarily by positive attachment. You support your party because you identify with its goals, candidates, policies, or values.
With negative partisanship, opposition becomes the stronger force. You might not feel particularly enthusiastic about your own party, but you perceive the opposing party as significantly worse.
Political scientist Lilliana Mason explains that political parties can function as social identities. People develop psychological connections to political groups, meaning elections aren't always experienced simply as competitions between different policy platforms. They can also feel like competitions between groups of people.
That dynamic can make negative partisanship particularly powerful.
One reason is that America's political parties increasingly represent different social identities alongside their political differences.
Mason explains that partisan identity has become increasingly connected with other identities, including race, religion, geography, and ideology. When those identities align with political parties, people have more reasons to feel connected to their own political group—and separated from the opposing group.
America's two-party system can reinforce this dynamic. Lee Drutman describes the political system as particularly vulnerable to an us-versus-them mentality because two major parties repeatedly compete against one another in winner-take-all elections. If one side wins power, the other loses it.
That creates an incentive to focus not only on helping your side succeed but also on stopping the opposing side.
Negative partisanship is closely connected to another concept called affective polarization.
Affective polarization describes the growing emotional divide between political groups: people feel increasingly positive toward members of their own party and increasingly negative toward members of the opposing party.
Importantly, these emotional divisions can be larger than the actual differences in people's political opinions. Mason notes that Americans often overestimate how ideologically extreme members of the opposing party actually are.
That creates a feedback loop.
People dislike the opposing party, assume its members hold more extreme views, and become increasingly motivated to prevent that group from gaining political power. As those feelings intensify, elections can become less about choosing the candidate you prefer and more about defeating the candidate or group you fear.
Negative partisanship can change the nature of democratic competition.
Healthy political disagreement allows people to believe that their ideas are better while recognizing that political opponents have a legitimate right to compete, win elections, and participate in government.
Negative partisanship can make that more difficult when dislike turns into moral condemnation.
Research discussed by Mason examines how partisan hostility can progress from disagreement toward vilification, in which political opponents are seen as morally inferior, and even dehumanization, in which they are viewed as fundamentally different or less worthy than one's own group.
At that point, compromise can feel less like negotiating with fellow citizens and more like surrendering to an enemy.
Negative partisanship means being politically motivated by who you are against rather than who you are for.
You may not love your party. You may disagree with its leaders or feel unenthusiastic about its candidates. But if you believe the opposing party is significantly worse—or even dangerous—you may continue supporting your side primarily to keep the other side from winning.
Ordinary partisanship says, “I want my team to win.”
Negative partisanship says, “Whatever happens, their team has to lose.”
That distinction helps explain why political competition can become so intense even when voters aren't particularly enthusiastic about their own political parties.
What is partisanship, and why does it divide us? Learn the psychology, consequences, and ways Americans can bridge the partisan divide.
Read PostSubscribe to receive a biweekly collection of the hottest podcast episodes from the network, upcoming special events, expert features and news from your favorite shows.
Subscribe to our NewsletterPartisanship means supporting, advocating for, or aligning with a particular political party or candidate. A partisan generally supports a party’s goals, promotes its platform or candidates, and wants that party to gain political power. Partisanship is a normal feature of democratic politics because political parties organize people around shared goals and compete to influence government. However, strong partisanship can become divisive when loyalty to a political party becomes part of a person’s social identity and politics turns into an “us versus them” competition.
In simple terms, partisanship means picking a political team and supporting that side. A partisan tends to support a particular political party or its candidates and wants them to succeed. This is a normal part of politics, just as sports fans naturally root for their team. But partisanship can become a problem when loyalty to the team becomes more important than evaluating its actions fairly, or when people begin treating those on the other side as enemies rather than fellow citizens with different political views.
Partisan means supporting or favoring a particular political party, candidate, or political side, while bipartisan means involving cooperation or agreement between two political parties. In the United States, bipartisan usually refers to Democrats and Republicans working together on legislation, policies, or other political goals. Partisanship is a normal part of democracy because parties compete to win elections and influence government, while bipartisanship occurs when members of competing parties find enough common ground to work toward a shared objective.
Partisan politics is not inherently good or bad. Some partisanship is a normal and useful part of democracy because political parties organize voters around shared goals, offer competing ideas for government, and give citizens meaningful choices in elections. Partisanship becomes harmful when loyalty to a political party becomes more important than evaluating ideas fairly, accepting legitimate election outcomes, compromising with opponents, or maintaining shared democratic rules. The problem, therefore, is less partisanship itself than hyperpartisanship—when ordinary political competition becomes an us-versus-them struggle in which defeating the opposing party takes priority over governing together.

Brandon Stover is the Network Manager for The Democracy Group and a Digital Content Specialist at the McCourtney Institute for Democracy. He leads partnerships and collaborations across the podcast network, oversees educational content strategy, and produces written, audio, and video content while managing the network's digital marketing efforts. Before joining the McCourtney Institute for Democracy, Brandon founded and led a nonprofit organization dedicated to creating free educational content on global issues. He holds a master's degree in Architecture from Washington State University.