The idea seems to be DOA in the Obama camp:

So much for that! An Obama insider says the idea of helping Hillary with her debt went down very, very badly among supporters, donors, fundraisers, etc. This person says the most generous offer he could foresee would be Obama headlining a fundraiser for Hillary, but cautions that this is just speculation and might even be a stretch.

And people really think there’s going to be a Dream Ticket?

Business Maybe Obama Won't Settle Hillary's Debts