MAJORITY

• 417Bob Casey

  [D] PA, United States
• 1,424John F. Kerry

  [D] MA, United States

  Ended 03/24/2011
• 170Tom Udall

  [D] NM, United States

  Began 03/24/2011
• 577Robert "Bob" Menendez

  [D] NJ, United States

  Began 03/24/2011
• 565Benjamin "Ben" L. Cardin

  [D] MD, United States
• 1,340Barbara Boxer

  [D] CA, United States
• 159Christopher Coons

  [D] DE, United States

  Began 03/24/2011

MINORITY

• 92James "Jim" E. Risch

  [R] ID, United States
• 432John "Johnny" Isakson

  [R] GA, United States
• 861Richard "Dick" G. Lugar

  [R] IN, United States

  Ended 03/24/2011
• 164Michael "Mike" S. Lee

  [R] UT, United States

  Began 03/24/2011
• 376John A. Barrasso

  [R] WY, United States

  Ended 03/24/2011
• 122Marco Rubio

  [R] FL, United States

  Began 03/24/2011
• 363Bob Corker

  [R] TN, United States