Assuming the relief efforts continue to function smoothly, the storm looks increasingly like a political gift to President Obama...
CBS News Link
I don't think Romney is going to win the election, this storm notwithstanding, but he's in a catch 22 situation at this point regarding post-Sandy campaign strategy. He can't really criticize Obama for doing his job and pulling the levers of federal disaster aid power without enraging almost everyone, and he can't really offer any meaningful assistance to the relief efforts without them being interpreted as crass self-promotion. If he simply continues with his campaign, he will be criticized for not giving sufficient deference to more important relief/recovery efforts. If he waits for the matter to blow over, the election will have passed. I don't see how the situation would be significantly different for any other candidate in this same situation. This is a perfect opportunity for the incumbent to demonstrate his organizational leadership ability, and he will likely succeed. The challenger will get no such opportunity to demonstrate their abilities to the voters, even if he or she were equally capable.
Anyway, I expect Hurricane Sandy to be a popular excuse for Romney's loss in next week's election, and a way for people to paper over his otherwise terrible candidacy.