Federal campaign committees vary in their reliance on highincome, high education, urban, and highly partisan districts forcontributions

Recent election cycles in the U.S. have seen a massive increase in fundraising by political campaign committees. In new research, Robert C. Lowry finds that these committees do not all raise money from the same kinds of communities. Studying itemized contributions by individuals to campaign committees, he writes that competitive districts generate more contributions to local candidates running in those districts, but there are fewer predicted contributions to many other kinds of committee. He also finds that the contributions made can be greatly affected by the district’s levels of income, education and urbanization.