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