The Harold E. Hughes senatorial papers are ordered in the following manner: 1) Legislative correspondence; 2) Outgoing correspondence carbons; 3) Senate committee and subcommittee materials; 4) Civic and institutional cases; 5) Press releases and related materials, amenities, and invitations; 6) Speeches; 7) Robos; 8) Miscellaneous personal correspondence and files; 9) Photographs; 10) Tapes; 11) Oversized materials, and 12) Subject Index. The major topics include: agriculture, alcoholism, banks, commerce, courts, crime, Democratic Party, drug abuse, education, manpower, draft, Richard Nixon, practical politics, postal service, poverty, public welfare, public works, roads, soil conservation, taxation, transportation, United Nations, veterans, Vietnamese conflict, and water pollution. The Iowa cities of Cedar Rapids, Davenport, Des Moines, and Waterloo are well represented. There is correspondence from: Hubert H. Humphrey, Edward M. Kennedy, and Walter F. Mondale.