BOSTON - A decade after he lost a bid for the U.S. House, John Kerry (news - web sites) faced a choice: build a respectable, mainstream career in Boston's legal circles or wade back into the muddy waters of Massachusetts politics. "After '72," said Dan Payne, a Democratic consultant who later worked for Kerry, "John told friends he wouldn't run again." Few believed him. When he decided in 1982 to return to politics, Kerry aimed low: lieutenant governor, a post with little power, few responsibilities and almost no public profile. But it offered a chance to build a statewide political...