Yesterday, we talked about how it appears Jeb has seen the writing on the wall. It seems pretty clear that the Bush campaign is headed for the end, and only a miracle in South Carolina will save them. No candidate says "I should stop campaigning, maybe" unless they've already realized that's the case.
Now we have further confirmation that this is the case. According to a piece (also published yesterday) by Erick Erickson, the Bush campaign has burned through hundreds of millions, has less than $15 million left, and will stop paying its staff on Saturday.