Publius argues, from a centrist Democratic perspective, and much to the disgust of his commentariat, that John McCain might not be so bad after all, except that he "never met a war he didn't like."
It seems to me like an exception that swallows the rule. I suppose as an American, publius is entitled to care about the domestic policies of a possible Presidential contender. But, from my perspective, the worst possible Republican nominee would be (a) more militaristic than Bush and (b) not tied in the public mind with Bush's Iraq policy. At least a dyed-in-the-wool Bushie would have trouble using the whole "Weapons of Mass Destruction" line again. And a conservative isolationist like Hagel might actually have a rational foreing policy. So McCain seems like the worst of all worlds.