This man was credited with developing the "Single Bullet Theory" while working for the Warren Commission.
This man was credited with developing the "Single Bullet Theory" while working for the Warren Commission. He joined fellow Republicans John Warner and John Chaffee in rejecting the nomination of Robert Bork, but drew controversy over his confrontations with Anita Hill during the confirmation of Clarence Thomas. Negative reaction to his vote on the Stimulus bill and the growing momentum of challenger Pat Toomey prompted a surprise announcement by this man, who serves with Bob Casey. For 10 points, name this Pennsylvanian Senator, who in April 2009 defected from the Republican Party to join the Democrats.
This man was credited with developing the "Single Bullet Theory" while working for the Warren Commission.
Arlen {Specter}