Clive S. Thomas, Laura Savatgy, Kristina Klimovich - 2016 - Political Scienceinterest groups, the role of ideology and partisanship, bipartisanship, and the role ... Parties and groups are both major means of political participation because they ... Unlike political parties, interest groups do not want to take formal control ofHrebenar, Burbank, and Benedict, Political Parties, Interest Groups, and Political ... Unlike most texts devoted solely to interest groups, the Key and Hrebenar, ... the major sources containing original research on interest groups are found in James Madison