After Jimmy Carter was elected Halper worked as a legislative assistant to Senator William Roth of Delaware holding this position from 1977 to 1979 and became a Special Counsel to the United States Congress' Joint Economic Committee. | After Jimmy Carter was elected Halper worked as a legislative assistant to Senator William Roth of Delaware holding this position from 1977 to 1979 and became a Special Counsel to the United States Congress' Joint Economic Committee. |