Democrat Tom Carper (Delaware)
Democrat Bob Casey (Pennsylvania)
Democrat Kent Conrad (North Dakota)
Democrat Dianne Feinstein (California)
Democrat Daniel Inouye (Hawaii)
Democrat Tim Johnson (South Dakota)
Democrat Herb Kohl (Wisconsin)
Democrat Mary Landrieu (Louisiana)
Democrat Blanche Lincoln (Arkansas)
Democrat Claire McCaskill (Missouri)
Democrat Barbara Mikulski (Maryland)
Democrat Ben Nelson (Nebraska)
Democrat Bill Nelson (Florida)
Democrat Mark Pryor (Arkansas)
Democrat Jay Rockefeller (West Virginia)