This story is suficiently big and complicated to potentially shift the timing up to a week. But that's part of the beauty of things like this. They can be left to simmer until they are needed. I expect the Rs will wait to see if the economic anxiety from the collapse impacts the polling numbers. If the econ worries seem to favor Obama, we will see this brought out sooner (say, Wed.). But generally, you want this sort of thing to pop up in the beginning of the weakly news cycle, so you can have it dominate the news for the week with a cascade of "next day" stories.