Dean E. Mann, Ph.D. (University of California, Berkeley), specialized in American Politics and was an early pioneer in the field of Environmental Politics. While teaching and conducting post-doctoral research at the University of Arizona, Mann established himself as an authority on the politics of water in the western United States. He served as a congressional fellow on the legislative staff of U.S. Senator Estes Kefauver of Tennessee and as a fellow with the Brookings Institute in Washington, D.C.