Authored by two leading scholars of the Supreme Court and its policy making, this study systematically presents and validates the use of the attitudinal model to explain and predict Supreme Court decision making. In the process, it critiques the two major alternative models of Supreme Court decision making and their major variants--the legal and rational choice. Using the U.S. Supreme Court Data Base, the justices' private papers, and other sources of information, the book analyzes the appointment process, certiorari, the decision on the merits, opinion assignments, and the formation of opinion coalitions.