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