An organization that attempts to influence the political decision making process.

An organization that attempts to influence the political decision making process: interest group.

Interests and interest groups in all kinds of political systems can be divided broadly into five categories: economic interests, cause groups, public interests, private and public institutional interests, and non-associational groups and interests.

Interest groups are non-profit and usually voluntary organization whose members share a common cause for which they seek to influence public policy.

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