Jonathan Alter goes through a scenario that has Clinton winning vs. Obama for the next 16 contests by double digits and this is the end result:
So no matter how you cut it, Obama will almost certainly end the primaries with a pledged-delegate lead, courtesy of all those landslides in February. Hillary would then have to convince the uncommitted superdelegates to reverse the will of the people. Even coming off a big Hillary winning streak, few if any superdelegates will be inclined to do so. For politicians to upend what the voters have decided might be a tad, well, suicidal.
After tonight, the Democratic party has to seriously look at things and decide if this thing is going to last forever and take down the party with it.