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