Negative Partisanship

Negative partisanship is the political phenomenon in which opposition to the opposing party becomes a stronger motivational force than attachment to one's own party. Rather than voting for a candidate because they represent one's values, the negative partisan votes against the candidate who represents the threatening out-group. The mechanism is aversion-driven: fear, anger, and disgust toward the opposing party mobilize turnout, shape media consumption, and justify policy positions that would otherwise be inconsistent with a voter's stated preferences.

Empirical research shows that negative partisanship has increased dramatically in the United States since the 1990s, with cross-party thermometer ratings reaching historic lows. The phenomenon is closely linked to affective polarization but distinct from it: affective polarization is the emotional state, while negative partisanship is the behavioral consequence. Negative partisanship explains why primary electorates punish compromise, why scandal affects only the opposing party's candidate, and why policy agreement across party lines has become electorally toxic.

_The rise of negative partisanship is the single most important fact about contemporary American politics that most political commentators refuse to acknowledge. They still write as if elections are about competing visions of the good society. They are not. They are about competing fears of the apocalyptic other. Until we redesign institutions for a electorate that votes against rather than for, our diagnoses of democratic dysfunction will remain superficial._