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