What Bill Daley knows is how to be a Democrat who can acquire and hold power -- something the Daley family has modeled for more than half a century. With his low-key demeanor, sense of personal decorum, and yen for privacy and upright behavior in personal life, the 62-year-old Daley has accumulated a lifetime of allies who now will help and respond to him in his new White House job. In Chicago terms, the president has moved from being a South Side activist to the Man in the Loop. The president hopes that the move will get him what he really wants: another term.