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