This episode's headline: Lame Ducks. The guests include Sen. ROBERT DOLE, Republican, Kansas; Sen. DALE BUMPERS, Democrat, Arkansas; Rep. THOMAS FOLEY, Democrat, Washington; Rep. DICK CHENEY, Republican, Wyoming. Byline: In New York: ROBERT MacNEIL, Executive Editor; In Washington: CHARLAYNE HUNTER-GAULT, Correspondent; MONICA HOOSE, Producer; ANNETTE MILLER, PEGGY ROBINSON, Reporters