Biden will also get 90% of the 775 or so superdelegates, netting another 600 delegates there.
So, his real delegate lead over Sanders is about 750 right now already ...
Not how it works anymore.
How does it work now ?
Superdelegates no longer have the right to cast decisive votes on the first ballot. They'll only be allowed to cast non-decisive votes on the first ballot if a candidate has received a majority of all delegates as a result of the primaries & caucuses (i.e. 2,376 pledged delegates going into the convention), or decisive votes on subsequent ballots in a contested convention (which is no longer happening due to the events of this past week).
So if somebody goes into the convention with a simple majority of
pledged delegates on the first ballet, they're the nominee and there's no superdelegates in the equation?