Hope Obama implodes in time due to some scandal, or that the superdelegates ignore the pledged delegate winner and hand it to her. That's been her only realistic path to the nomination since super Tuesday.
Obama impoding is IT. No one is hiding that the super delegates will be making the decision and there just isn't any good arguments for them to go against Obama unless he implodes.
Everything is close enough between the candidates that there is no compelling reason to risk the backlash from making a different decision that the voters unless there is a very good reason. It's either Obama self destruction or Clinton curing cancer or something, there is no other way.
That's the only way realistic way the delegate gap is going to be closed. What else could possibly cause the kind of 30+ point swings in the polls in most of these states between now and then?
There is no realistic way that Clinton can make up that difference through just campaigning. Major scandals, Obama dropping out, dying, etc. are pretty much the only possible way that the pledged delegate count is going to end up even at the end.
That pretty much just leaves the superdelegates, which is probably why so much of her campaign since super Tuesday has been focused on making various arguments as to their appropriate role.
