With a compilation of information that has never before been available in one source, this exhaustive reference work provides complete published election returns for all popular Congressional elections, including special elections, in the United States—over 36,000 since 1788. For all candidates, party affiliation, number of votes received, and percentage of popular vote are given. A brief history of congressional elections is provided, outlining the variations between states in the early years and detailing the changes caused by the Civil War and the Reconstruction era.