BEYOND the presidential and vice-presidential candidates, attention at the Democratic Convention will focus on some key figures, people who are either instrumental in running the convention or who could emerge as influential brokers on the floor. Among them:
LAWRENCE F. O'BRIEN. The party's national chairman will also likely be the convention chairman, a chore for which he volunteered. O'Brien, 55, a shrewd, talented political dealer and insider in both the Kennedy and Johnson Administrations, has been a focal paint in his party's comeback from the 1968 debacle, shepherding the Democrats toward party reform and modernization of convention rules, holding the line on...