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