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