MAJORITY

• 560Benjamin "Ben" L. Cardin

  [D] MD, United States

  Ended 01/03/2013
• 169Tom Udall

  [D] NM, United States

  Began 03/24/2011
• 410Bob Casey

  [D] PA, United States
• 263Jeanne Shaheen

  [D] NH, United States
• 564Robert "Bob" Menendez

  [D] NJ, United States

  Ended 01/03/2013
• 1,334Barbara Boxer

  [D] CA, United States
• 116Kirsten E. Gillibrand

  [D] NY, United States
• 151Christopher Coons

  [D] DE, United States

  Began 03/24/2011
• 1,422John F. Kerry

  [D] MA, United States
• 1,982Richard "Dick" J. Durbin

  [D] IL, United States

  Began 03/24/2011

MINORITY

• 361Bob Corker

  [R] TN, United States

  Ended 01/03/2013
• 366James "Jim" DeMint

  [R] SC, United States
• 915James M. Inhofe

  [R] OK, United States

  Began 03/24/2011
• 114Marco Rubio

  [R] FL, United States

  Began 03/24/2011
• 185Roger Wicker

  [R] MS, United States
• 88James "Jim" E. Risch

  [R] ID, United States

  Ended 01/03/2013
• 861Richard "Dick" G. Lugar

  [R] IN, United States