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