Well, apparently this [election funds] is another aspect that is clear as mud, and probably would have to be sorted out in court if it came to that. And another plus for Biden hanging on.
What it is, is a workaround for campaign contributions limits. As he said the big donors contribute in this fashion just so their money is not wasted in such an event as this. Their money goes to supporting the top of the ticket on down, regardless of any unforeseen events that might crop up.