This study examined the structure of attitudes toward the political party an individual primarily identifies with and attitudes toward the other party with an emphasis on differentiating between the cognitive and affective components. Participants responded to a telephone survey that included measures of party identification, partisan attitudes, political information involvement activities, and voting behavior. Results indicated attitudes toward the parties were a function of both cognitive and affective components, although strong partisans had an attitudinal structure characterized as having a stronger cognitive component. Strong partisans were more polarized in their attitudes across parties. In addition, individuals with more cognitive-affective ambivalence toward their own parties were less likely to vote, and their votes were less likely to be along party lines.