MAJORITY

• 574Thomas "Tom" R. Carper

  [D] DE, United States
• 295Jeffery "Jeff" Merkley

  [D] OR, United States
• 1,031Frank R. Lautenberg

  [D] NJ, United States

  Began 03/24/2011
• 1,309Max Baucus

  [D] MT, United States
• 561Benjamin "Ben" L. Cardin

  [D] MD, United States

MINORITY

• 373John A. Barrasso

  [R] WY, United States

  Began 03/24/2011
• 723Lamar Alexander

  [R] TN, United States

  Began 03/24/2011
• 384David Vitter

  [R] LA, United States
• 441Bernard "Bernie" Sanders

  [I] VT, United States
• 1,418Jefferson "Jeff" Sessions

  [R] AL, United States

  Began 03/24/2011
• 264Mike Johanns

  [R] NE, United States

  Began 03/24/2011