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