The Causes and Consequences of Divided Government: Toward a New Theory of American Politics? - The Politics of Divided Government. Edited by Gary W. Cox and Samuel Kernell. Boulder: Westview Press, 1991. 270p. $55.00 cloth, $15.95 paper. - Divided Government. By Morris Fiorina. New York: MacMillan Publishing Company, 1992. 138p. $10.50 paper. - The Electoral Origins of Divided Government: Competition in U.S. House Elections, 1946–1988. By Gary C. Jacobson. Boulder: Westview Press, 1990. 152p. $44.50 cloth, $15.95 paper. - Divided We Govern: Party Control, Lawmaking, and Investigations, 1946–1990. By David R. Mayhew, New Haven: Yale University Press, 1991. 228p. $25.00.