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