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