Abstract

http://ssrn.com/abstract=2432111
 


 



Split Definitive: How Party Polarization Turned the Supreme Court into a Partisan Court


Neal Devins


William & Mary Law School

Lawrence Baum


Ohio State University (OSU) - Department of Political Science

May 2, 2014

William & Mary Law School Research Paper No. 09-276

Abstract:     
Starting in 2010 the Supreme Court has divided into two partisan ideological blocs, with all the Court’s Democratic appointees on the liberal side and its Republican appointees on the conservative side. Correspondingly, since 1990 there has been a dramatic increase in the ideological gap between Democratic and Republican appointees. In this article we make use of original empirical research to establish that this partisan division is unprecedented in the Court’s history, and we undertake a systematic analysis of how it came about. We show that it is linked to growing partisan polarization among political elites, polarization that has shaped the Court in multiple ways. The sorting of elites into the two parties on the basis of ideology has greatly reduced the numbers of conservative Democrats and liberal Republicans who might be selected as Justices. The same sorting has prompted presidents — for the first time ever — to make ideology the dominant factor in appointing Justices.

Finally, political elites that tended to lean in a moderate-to-liberal direction during the 1960s through much of the 1980s have become far more polarized along ideological lines. As we show through original research on the voting patterns of Justices over the past forty years, Justices who once might have been drawn toward moderation are increasingly reinforced in their liberal or conservative orientations. One key reason is that the rise of the conservative legal network has worked against the “drift” of Republican appointees toward more moderate positions that was common a few decades ago. This analysis indicates that the current partisan division on the Court is not a temporary phenomenon; rather, it is likely to continue as long as the current partisan polarization continues.

Number of Pages in PDF File: 77

Keywords: Supreme Court, law & psychology, law & politics, law & society

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Date posted: May 3, 2014 ; Last revised: May 7, 2014

Suggested Citation

Devins, Neal and Baum, Lawrence, Split Definitive: How Party Polarization Turned the Supreme Court into a Partisan Court (May 2, 2014). William & Mary Law School Research Paper No. 09-276. Available at SSRN: http://ssrn.com/abstract=2432111 or http://dx.doi.org/10.2139/ssrn.2432111

Contact Information

Neal Devins (Contact Author)
William & Mary Law School ( email )
South Henry Street
P.O. Box 8795
Williamsburg, VA 23187-8795
United States
757-221-3845 (Phone)
757-221-3261 (Fax)
Lawrence Baum
Ohio State University (OSU) - Department of Political Science
Blankenship Hall-2010
901 Woody Hayes Drive
Columbus, OH OH 43210
United States
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