| Male | Lamar Alexander,
John Barrasso,
Evan Bayh,
Jim Bunning,
Richard Burr,
Saxby Chambliss,
Tom Coburn,
Bob Corker,
John Cornyn,
Mike Crapo,
Jim DeMint,
John Ensign,
Mike Enzi,
Russ Feingold,
Lindsey Graham,
Chuck Grassley,
James Inhofe,
Mike Johanns,
Jon Kyl,
Richard Lugar,
Mel Martinez,
John McCain,
Mitch McConnell,
James Risch,
Pat Roberts,
Jeff Sessions,
John Thune,
David Vitter | Daniel Akaka,
Max Baucus,
Mark Begich,
Michael Bennet,
Bob Bennett,
Jeff Bingaman,
Kit Bond,
Sherrod Brown,
Roland Burris,
Ben Cardin,
Tom Carper,
Bob Casey,
Thad Cochran,
Kent Conrad,
Chris Dodd,
Byron Dorgan,
Dick Durbin,
Judd Gregg,
Tom Harkin,
Orrin Hatch,
Daniel Inouye,
Tim Johnson,
Edward Kaufman,
John Kerry,
Herb Kohl,
Frank Lautenberg,
Patrick Leahy,
Carl Levin,
Joseph Lieberman,
Robert Menendez,
Jeff Merkley,
Ben Nelson,
Bill Nelson,
Mark Pryor,
Jack Reed,
Harry Reid,
Jay Rockefeller,
Bernard Sanders,
Chuck Schumer,
Richard Shelby,
Arlen Specter,
Jon Tester,
Mark Udall,
George Voinovich,
Mark Warner,
Jim Webb,
Sheldon Whitehouse,
Ron Wyden | Sam Brownback,
Robert Byrd,
Johnny Isakson,
Edward Kennedy,
Tom Udall,
Roger Wicker |