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