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