Kent Conrad (D-ND)
Byron Dorgan (D-ND)
Mike DeWine (R-OH)
George Voinovich (R-OH)
James Inofe (R-OK)
Tom Coburn (R-OK)
Ron Wyden (D-OR)
Gordon Smith (R-OR)
Arlen Specter (R-PA)
Rick Santorum (R-PA)
Jack Reed (D-RI)
Lincoln Chaffee (R-RI)
Linsdey Graham (R-SC)
Jim DeMint (R-SC)
Timothy Johnson (D-SD)
John Thune (R-SD)
Bill Frist (R-TN), Senate Majority Leader
Lamar Alexander (R-TN)
Kay Bailey Hutchison (R-TX)
John Cornyn (R-TX)