| Pre-boomer | Brock Adams,
Daniel Akaka,
Max Baucus,
Lloyd Bentsen,
Joe Biden,
Jeff Bingaman,
David Boren,
Bill Bradley,
John Breaux,
Richard Bryan,
Dale Bumpers,
Jocelyn Burdick,
Robert Byrd,
Alan Cranston,
Dennis DeConcini,
Alan Dixon,
Chris Dodd,
Jim Exon,
Wendell Ford,
Wyche Fowler,
John Glenn,
Bob Graham,
Tom Harkin,
Howell Heflin,
Fritz Hollings,
Daniel Inouye,
Bennett Johnston,
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,
Robert Packwood,
Claiborne Pell,
David Pryor,
Harry Reid,
Donald Riegle,
Chuck Robb,
Jay Rockefeller,
Terry Sanford,
Paul Sarbanes,
James Sasser,
Richard Shelby,
Paul Simon,
Arlen Specter,
Paul Wellstone,
Tim Wirth,
Harris Wofford | Kit Bond,
Hank Brown,
Conrad Burns,
John Chafee,
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,
Jesse Helms,
James Jeffords,
Nancy Kassebaum,
Robert Kasten,
Trent Lott,
Richard Lugar,
Connie Mack,
John McCain,
Mitch McConnell,
Frank Murkowski,
Larry Pressler,
William Roth,
Warren Rudman,
John Seymour,
Alan Simpson,
Robert Smith,
Ted Stevens,
Steven Symms,
Strom Thurmond,
Malcolm Wallop,
John Warner | David Durenberger |