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