Explain how interest groups and lobbying influence policy, and trace the stages of the public policy-making process from agenda-setting to evaluation.
An interest group is an organization of people who share a common goal and try to influence government policy without themselves running candidates for office, the feature that distinguishes interest groups from political parties. Interest groups take many forms: economic groups (business associations, labor unions), public-interest or cause groups (spanning the political spectrum, from environmental groups to civil-liberties organizations to taxpayer advocacy groups), and single-issue groups focused narrowly on one policy question. Lobbying is the direct effort to influence lawmakers or agencies, often by registered professional lobbyists who provide research, testimony, and direct persuasion, and who sometimes move between government jobs and lobbying jobs, a pattern critics call the "revolving door." Political scientists have long debated how to evaluate this activity: pluralist theory holds that many competing interest groups, pulling in different directions, is a healthy feature of democracy that prevents any single interest from dominating; elite theory counters that wealthy, well-organized interests enjoy disproportionate access and influence that ordinary citizens cannot match. Both are long-standing, seriously argued positions in political science, not a settled dispute.
Public policy generally moves through five stages. Agenda-setting is the process by which a problem gets enough public or governmental attention to be considered for action at all, often triggered by a crisis, investigative reporting, or sustained interest-group pressure; most problems never make it onto the agenda. Formulation follows, as specific proposals are drafted, often shaped by expert testimony and interest-group input in congressional committees (see week 8). Adoption, or legitimation, is formal enactment: a bill passes Congress and is signed by the president, or an agency issues a formal regulation. Implementation hands the policy to the federal bureaucracy, which writes detailed rules and enforces them in practice, often revealing gaps the original law did not anticipate. Evaluation asks whether the policy actually achieved its goals, feeding lessons back into the next round of agenda-setting. Interest groups can intervene at every single stage of this cycle, not only by lobbying Congress before a vote; they also testify at agency rule-making hearings, sue over implementation, and fund research used in evaluation. Political scientists sometimes describe an "iron triangle": a tight, mutually reinforcing relationship between an interest group, the congressional committee overseeing its issue, and the bureaucratic agency implementing policy in that area, each with reasons to support the others' priorities.
Mastery looks like: They can define an interest group and distinguish it from a party, explain pluralist versus elite theory, and correctly sequence and explain all five stages of the policy-making process.
Common stumbles: Assuming interest groups only act by lobbying Congress before a vote, missing their role at every stage of the policy cycle including implementation and evaluation.