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