The Math- as near as I can figure it...Obama - 1573
2025 needed to win, so he needs 452 or she needs 561. Florida is off the table (For now- and would represent some split of 210, If they went by the results that came out from the sham election it would be some split of 50/33/14/1 Clinton/Obama/Edwards/Kucinich, I think they'd have to do it over again. I definitely think they'll have to do Michigan over again - or never seat the delegates- Obama wasn't even listed on the Ballot)
So there are 11 contests left:
Wyoming this weekend- 18
North Carolina -134
West Virginia- 39
South Dakota- 23
Puerto Rico - 55
For a total of 736 contested state elected delegates.
there are 346 undecided Super Delegates.
The polls I've seen have him ahead in North Carolina and behind in Pennsylvania.
Assuming she wins in Pennsylvania by margins similar to Ohio, she'd be up maybe 30 delegates from her current deficit, but North Carolina might wipe most of that out. I haven't seen any polls on Mississippi or Wyoming yet.