Then that should give Obozo a wide lead over Buchanan.............
True except that Buchanan actually turned something that could have been only slightly bigger than the Whiskey Rebellion into the Civil War. While there are quite a few people preparing to keep their oath to defend the Constitution of the United States against all enemies, we are not yet in a full-scale shooting war. There is still a chance that Obama will not drag us over that line against our will, and that chance is what is keeping Obama out of first place (for the moment). Obama is maliciously evil, but the timing has not been quite right for someone with his marginal work ethic to cross that threshold easily.