DePaul Law Review
Here, we undertake the first effort at assessing the existence and extent of law clerk influence in the U.S. Supreme Court. Drawing upon original survey data on the political ideology of 532 former law clerks, we evaluate the extent to which both the Justice's personal policy preferences and those of his or her law clerks exert an independent influence on the Justice's votes. While our results are preliminary, they nonetheless support the contention that--over and above "selection effects" due to Justices choosing like-minded clerks--clerks' ideological predilections exert an additional, and not insubstantial, influence on the Justices' decisions on the merits. In Part II, we first present a short overview of the evolution of the rules and norms surrounding the hiring and utilization of law clerks at the United States Supreme Court, paying special attention to the job duties of clerks on the current Supreme Court. Drawing upon principal-agent theory, in Section II.B, we then discuss the dynamics between law clerks and Justices and the conditions that must be present before law clerks can wield influence. Finally, in Parts III, IV, and V, we propose and empirically test a model of Supreme Court decision making that includes the preferences of law clerks as a separate independent variable.
Todd C. Peppers & Christopher Zorn, Law Clerk Influence on Supreme Court Decision Making: An Empirical Assessment, 58 DePaul L. Rev. 51 (2008).
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