He seems to be riding a crest of publicity, and with quotes like these, Paul Krugman deserves it:

Four months ago it seemed that the 2004 campaign would be all slow-mo films of Mr. Bush in his flight suit. But at this point, it’s likely to be pictures of Howard Dean or Wesley Clark that morph into Saddam Hussein.

Not only is this hilarious, but it strikes a frighteningly realistic chord.