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