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