This course is designed to introduce the issues that concern political scientists (especially) and economists about interest groups in American politics. The goal of the course is to provide a better substantive understanding of interest groups specifically and the political system more generally. Foci include the historical development of the interest group system, the formation of organizations, the relationship between associations and formal political institutions, money and politics, and policy-specific case studies. Instruction is primarily though lectures, although class participation is strongly encouraged.