Ultra-partisan Republicans hate President Clinton. They hate the memory of President Kennedy almost as much. The men have a lot in common — smart, articulate, cool, educated at Harvard, both pointy-headed policy wonks, both charming, witty liberals. So the recent "revelations" about Kennedy's health (which reveal little that was not already known) have caused them great delight. Bushite speechwriter Peggy Noonan (the "thousand points of light" woman) chortled gleefully in the Wall Street Journal that if the media in 1960 had focused on the qualifications of a president they way they do now, Kennedy would never have been elected. And...