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