AN organization of people sharing common interest or goal that seeks to influence the making of public policyl
something of value one cannot get without joining an organization
the social rewards (sense of pleasure, status, or companionship) that lead people to join political organizations.
money or things valued valued in monetary terms.
a benefit that comes from serving a cause or principle.
ideological interest groups
Political organizations that attract members by appealing to their political convictions or principles
a political organization whose goals will principally benefit nonmembers.
a widely shared demand for change in some aspect of the social or political order
a signal telling a legislator what values are at stake in a vote, and how that issue fits into his or her own political views on party agenda
assessments of a representative's voting record on issues important to an interest group.