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