Interest groups in the United States. -- The evolution of interest groups in the United States. -- The formation and maintenance of interest groups. -- The non-lobbying activities of interest groups. -- Direct lobbying. -- Electoral lobbying. -- Indirect lobbying. -- Interest groups and politicsl parties. -- The influence of interest groups. -- Conclusion: The role of interest groups in American politics.

1. Lobbying -- United States
2. Pressure groups -- United States