The 1990 edition describes the political demographics of each Congressional district in a distinct box from the political information on the incumbent. Box includes overview of demographics, economic sectors and politics of the area. U.S. Senate Descriptions of the district compiled by the Washington Post Includes brief information on the major candidates. Project Vote Smart Biography, campaign finances, special interest group ratings, voting record. Responses to 2000 Congressional National Political Awareness Test.
Data are much less complete for challengers.