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