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