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