Policymakers and congressmen have goals of power, and making their own mark in public policy, not pure aims of reelection (Dodd 1977). Reelection does play a great part in the legislative process as a condition to achieving any other political goal. Thus, logrolling can be a powerful tool for committee chairs, who control the voting agendas (Evans 1994). While committee leaders create the supermajority, they try to achieve their personal goals and help a bare majority of members achieve theirs. A skilled policy-oriented committee leader often seeks to exploit the goals of other members in order to construct legislation he or she will prefer (Arnold 1979 and Strahan 1989).