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