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