We argue that even as the Senate filibuster poses serious governance challenges in todays Congress, it persists because most senators prefer to maintain the minoritys right to obstruct. We consider what this rank-and-file support for the filibuster tells us about the nature of individual senators preferences and about the Senate as an institution. We believe that continued support for the filibuster underscores the importance of personal power and publicity goals, the ability of rules to provide political cover for legislators, and the role of shared understandings about the appropriate use of rules and about the Senates place in the political system. Where nineteenth-century senators propagated a set of beliefs that limited the legitimate use of obstruction, todays senators have developed an alternative set of beliefs that bolsters the institutional role of the filibuster. Under these circumstances, reform will likely require substantial pressure from outside the institution rather than emerging from within the Senate.
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