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