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