5.7 Groups Influencing Policy Outcomes

• Single-issue groups: focus intensely on one issue and often judge candidates by that issue alone. Examples include groups on both sides of gun policy and both sides of abortion. Their members' intensity makes them influential beyond their numbers, especially in primaries.
• Ideological groups: push a broad set of liberal, conservative or libertarian goals across many issues.
• Social and protest movements: large numbers of people mobilizing, often outside normal channels, through marches, boycotts and civil disobedience, as the civil rights movement did (3.10).
• Professional organizations: groups such as the American Medical Association and the American Bar Association shape policy in their fields. The ABA, for instance, has long rated the qualifications of nominees to federal courts.
• The military and defense contractors: in his 1961 farewell address, President Eisenhower warned of the growing influence of a “military-industrial complex.” Defense companies, military leaders and members of Congress with bases or factories in their districts all have a stake in defense spending.
• Bureaucratic agencies: agencies advocate for their own budgets and missions in Congress and within the executive branch.

Because every program needs money, the annual budget is where group pressures collide. Agencies ask for more funding, interest groups lobby for programs that help their members, and members of Congress protect spending in their districts. Mandatory spending, such as Social Security and Medicare, is defended by large, active constituencies, which makes it very hard to cut (2.2). Discretionary spending is the main arena for yearly fights.

Some elections lead to realignments, lasting shifts in party loyalties (5.4), which can sustain policy change across many elections, as the 1932 election did.

Pluralists argue that because so many groups compete, no single interest dominates, and policy reflects a balance of pressures. Critics respond that groups with intense, organized members and more resources win more often, while broad but unorganized interests, like taxpayers in general, are underrepresented. Both views help explain real outcomes.