GREENWICH, Conn. -- You know you're in a different kind of town when the signs against drunk driving show a line drawn through a Martini glass to which the artist thoughtfully added a stirrer. Greenwich, Conn., is one such town. Greenwich is home to billionaire hedge-fund managers, private-equity kings and corporate chieftains, as well as ordinary multi-multimillionaires. Interviewing people here requires leaving phone messages with au pairs and catching folks between board meetings. You'd think that Greenwich would be solid Bush-loving turf -- what with all those tax cuts for the rich. It is not. The voters are roughly 40...