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