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