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Judiciary Committee Chair: Arlen Specter Arlen Specter, a Republican senator from Pennsylvania, held the position of Chair of the Senate Judiciary Committee. This committee has significant responsibilities, including overseeing the federal judiciary, considering judicial nominations, and addressing issues related to civil rights, criminal justice, and immigration. Specter's tenure as Chair spanned from 2005 to 2009, during which time he played a key role in shaping legislation and confirming judges.