CollegesAlthough scholars of American political development (APD) have helped transform many aspects of the study of U.S. politics over the last quarter-century, they have barely begun to use the powerful analytical tools of this approach to elucidate the relationship between government and citizens. APD research has probed deeply into the processes of state-building and the creation and implementation of specific policies, yet has given little attention to how such development affects the lives of individuals and the ways in which they relate to government. Studies routinely illuminate how policies influence the political roles of elites and organized groups, but barely touch on how the state shapes the experiences and responses of ordinary individuals. As a result, we know little about how governance has influenced citizenship over time or how those changes have, in turn, affected politics.Presumably state development influences many different aspects of citizenship, each of which is critical to the state's legitimacy, authority, and power. Different periods of governance might affect the extent to which individuals possess a sense of civic obligation and duty or a claim to specific rights. In some political eras, citizens may derive their identity from the state; in others, they may do so in opposition to the state. Given disparities in the ways policies may affect different groups of people, governance could create separate forms of status and stratify the citizenry; alternatively, some policies might foster a sense of social solidarity even among those who are situated differently in terms of class, race, or gender. The form taken by governing arrangements across time is likely to shape citizens' attitudes about and levels of support for government generally and for particular policies. Perhaps most significant, distinct regimes may mobilize citizens to participate to varying degrees, in different ways, and for diverse purposes. Each of these relationships lies well within the domain of American political development and thus APD scholars ought to be able to explain much about them.Yet, such concerns remain on the margins of APD scholarship, typically discussed briefly-if at all-in the final chapters of books or conclusions of articles. In effect, APD scholars have ceded the study of individual political behavior to behavioralists and rational choice scholars. Unfortunately, neither group employs the analytical tools necessary to grapple effectively with the questions posed above.Behavioralists tend to conduct their analysis from a society-centric starting point, considering political institutions and policies only as an endpoint of political behavior rather than potentially as a formative influence upon it; rational choice scholars, conversely, typically assume how institutions influenceThe authors wish to thank Sarah Byrne for her masterful work in preparing our graphs for publication and two anonymous reviewers who provided helpful comments on an earlier draft.