This episode's headline: Campaign 2004; Marriage Tests; Troubled Kingdom. ANCHOR: JIM LEHRER; GUESTS: JEFF ZELENY; GLEN JOHNSON; MARK SHIELDS; DAVID BROOKS; MARK JOHNSON; MITCH FRANK; TOM WOLZIEN; CORRESPONDENTS: KWAME HOLMAN; RAY SUAREZ; SPENCER MICHELS; MARGARET WARNER; GWEN IFILL; TERENCE SMITH; KWAME HOLMAN