Barack Obama owes more than I'd like him to owe to the Wall Street crowd. He probably at this point owes a little more than I'd like him to owe to the military. The rest he owes to the millions of people who elected him in 2008 — especially to those people whose enthusiasm I neither shared nor really understood — and he will owe them even more if they come out and pull his chestnuts out of the fire for him this time around. He may sell them out — and, yes, I understand if you wanted to add "again" to that statement — but they are not likely to revenge themselves against the country if he does and, even if they decided to, they don't have the power to do much but yell at the right buildings.
On the other hand, Willard Romney owes even more to the Wall Street crowd, and he owes even more to the military, but he also owes everything he is politically to the snake-handlers and the Bible-bangers, to the Creationist morons and to the people who stalk doctors and glue their heads to the clinic doors, to the reckless plutocrats and to the vote-suppressors, to the Randian fantasts and libertarian fakers, to the closeted and not-so-closeted racists who have been so empowered by the party that has given them a home, to the enemies of science and to the enemies of reason, to the devil's bargain of obvious tactical deceit and to the devil's honoraria of dark, anonymous money, and, ultimately, to those shadowy places in himself wherein Romney sold out who he might actually be to his overweening ambition. It is a fearsome bill to come due for any man, let alone one as mendaciously malleable as the Republican nominee. Obama owes the disgruntled. Romney owes the crazy. And that makes all the difference.