The constitutional framework; the structure of Congress; the powers of Congress; the dynamics of Congressional change; adaptive and consolidative change; recruitment practices - the primacy of party machines; the progressive reforms; the nature of change; Congressional elections; the electoral environment; the decline in partisanship; the new campaign technology - television; fundraising; the candidate-centred campaign organisation; the role of the parties in campaigns; the Congressional campaign committees; Congressional membership; membership stability; prior occupations of members of Congress; religious affiliations of members of Congress.