This episode's headline: Halfway Mark; Troubled Kids; Departure. The guests include TOM NORTON, President, Colorado Senate [R];MIKE FEELEY, Minority Leader, Colorado Senate [D];PEGGY KERNS, Minority Leader, Colorado House [D];CHUCK BERRY, Speaker, Colorado House [R]; CORRESPONDENTS: CHARLAYNE HUNTER-GAULT; TOM BEARDEN; JUDY ASLETT. Byline: In New York: ROBERT MAC NEIL; In Washington: JAMES LEHRER