As a Bush re-election later this year looks increasingly likely, some left-wingers worry that Howard Dean is too risky a candidate to put up against a popular President. There is, of course, the obvious comparison to McGovern and the fear that a true believer may inevitably be a sure loser. There is also the worry that Dean may not in fact be so true a believer in the first place: he did support Newt Gingrich's Medicare reforms, after all, and has been a little too cozy with gun rights advocates; might he not betray the Left in order to appeal...