MAJORITY

• 411Bob Casey

  [D] PA, United States

  Began 01/06/2009
• 1,556Christopher "Chris" J. Dodd

  [D] CT, United States

  Began 01/06/2009
• 910Russell "Russ" Feingold

  [D] WI, United States

  Began 01/06/2009

  Ended 01/02/2011
• 1,335Barbara Boxer

  [D] CA, United States

  Began 01/06/2009
• 560Benjamin "Ben" L. Cardin

  [D] MD, United States

  Began 01/06/2009
• 207Edward "Ted" E. Kaufman

  [D] DE, United States

  Began 01/16/2009

MINORITY

• 88James "Jim" E. Risch

  [R] ID, United States

  Began 01/06/2009
• 361Bob Corker

  [R] TN, United States

  Began 01/06/2009
• 373John A. Barrasso

  [R] WY, United States

  Began 01/06/2009
• 426John "Johnny" Isakson

  [R] GA, United States

  Began 01/06/2009
• 861Richard "Dick" G. Lugar

  [R] IN, United States

  Began 01/06/2009