THE COMMITTEE CHAIR' Patrick Leahy of Vermont.
THE BIG GUNS: Joseph Biden of Delaware and Ted Kennedy of Massachusetts. Both Biden and Kennedy are powerful senators with the potential to play major roles, but each chairs another major committee and may be focusing his attention elsewhere.
THE OTHER LIBERALS: Charles Schumer of New York and Dick Durbin of Illinois. Schumer will lead the liberal charge when Biden and Kennedy aren't around, and will try to use his place on the committee to keep from being upstaged by Hillary Clinton, the junior senator from his state. Durbin is an intelligent, aggressive questioner; he was one of the earliest …