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