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