NANTUCKET, Mass. - After a week of campaigning for the less fortunate, John Kerry (news - web sites) went on vacation with the fabulously wealthy. Kerry is a rich man who promotes the Democratic ideal that government should do more to help the poor. He moves between both worlds, spending the past week traveling to downtrodden places like South-side Columbus, Ohio, and the affluent island playground of Nantucket. Not since President Kennedy have Democrats been prepared to nominate a man of such riches. President Clinton (news - web sites) didn't own a home until he left the White House and...