Russell Feingold (D-Wisc.)

Dianne Feinstein (D-Calif.)*

Herb Kohl (D-Wisc.)*

Carl Levin (D-Mich.)

Charles Schumer (D-N.Y.)

Arlen Specter (R-Pa.)

Paul Wellstone (D-Minn.)

Ron Wyden (D-Ore.)