| Pre-boomer | Bob Bennett,
Jeff Bingaman,
Kit Bond,
John Breaux,
Hank Brown,
John Chafee,
Dan Coats,
Paul Coverdell,
Larry Craig,
Jack Danforth,
Bob Dole,
Pete Domenici,
David Durenberger,
Alfonse D'amato,
Lauch Faircloth,
Bob Graham,
Phil Gramm,
Chuck Grassley,
Orrin Hatch,
Howell Heflin,
Jesse Helms,
Kay Bailey Hutchison,
James Jeffords,
Nancy Kassebaum,
Bob Kerrey,
Herb Kohl,
Frank Lautenberg,
Trent Lott,
Richard Lugar,
Connie Mack,
John McCain,
Mitch McConnell,
Frank Murkowski,
Sam Nunn,
Larry Pressler,
Chuck Robb,
William Roth,
Richard Shelby,
Alan Simpson,
Robert Smith,
Arlen Specter,
Strom Thurmond,
Malcolm Wallop,
John Warner | Daniel Akaka,
Max Baucus,
David Boren,
Barbara Boxer,
Bill Bradley,
Richard Bryan,
Dale Bumpers,
Robert Byrd,
Ben Campbell,
Thad Cochran,
William Cohen,
Dennis DeConcini,
Chris Dodd,
Byron Dorgan,
Jim Exon,
Dianne Feinstein,
Wendell Ford,
John Glenn,
Slade Gorton,
Tom Harkin,
Mark Hatfield,
Fritz Hollings,
Daniel Inouye,
Bennett Johnston,
Edward Kennedy,
John Kerry,
Patrick Leahy,
Carl Levin,
Joseph Lieberman,
Harlan Mathews,
Howard Metzenbaum,
Barbara Mikulski,
George Mitchell,
Daniel Moynihan,
Robert Packwood,
Claiborne Pell,
David Pryor,
Harry Reid,
Donald Riegle,
Jay Rockefeller,
Paul Sarbanes,
James Sasser,
Paul Simon,
Ted Stevens,
Paul Wellstone,
Harris Wofford | Joe Biden,
Conrad Burns |