This episode's headline: On the Stump; Burning Issues; Paycheck Politics. The guests include GEORGE BUSH, GOP Presidential Nominee; MICHAEL DUKAKIS, Democratic Presidential Nominee; SEN. PAUL SIMON, [D] Illinois; SEN. GORDON HUMPHREY, [R] New Hampshire; HARRISON HICKMAN, Democratic Pollster; BILL McINTURFF, Republican Pollster; CORRESPONDENTS: KWAME HOLMAN; TOM BEARDEN. Byline: In New York: ROBERT MacNeil; In Washington: JAMES LEHRER