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