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