Barbara Boxer (D-Greenbrae)*

Russell Feingold (D-Wisc.)*

Dianne Feinstein (D-San Francisco)

Herb Kohl (D-Wisc.)

Frank Lautenberg (D-N.J.)

Carl Levin (D-Mich.)

Joseph Lieberman (D-Conn.)

Charles Schumer (D-N.Y.)*

Arlen Specter (R-Pa.)*

Paul Wellstone (D-Minn.)

Ron Wyden (D-Ore.)*