@parados,
Having done the math, it starts to look a little more daunting for Bernie.
He needs 66% of the remaining uncommitted delegates to win the nomination.
If we assume all the undeclared super delegates (219) go Bernie's way he still needs 62% of the regular delegates that are left.
If all the super delegates (712) switch to Bernie he still needs to win 51% of the regular delegates that are left.
With Bernie trailing Hillary in national polls by double digits, it doesn't seem likely he can capture that many delegates over the next couple of months.