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