Examines the workings of authority and race structures in urban life through the detailed analysis of a single public policy issue citizen participation in the Community Action Program of the Johnson Administration's "War on Poverty."The authors focus on the politics of the project in five major American cities and discuss the factors which affected the development of the action program in each. The book stresses the effect of machine and reform structures on minority group organizations and the failure of these groups to appreciate the significance of racial cleavage in American politics."