Warren makes the claim that the delegate rule changes, as they now exist, were what sanders wanted.

It’s what got negotiated by three parties as I recall. It’s what the Sanders team had to settle for. The issues of open primaries and same day registration pushed by Sanders camp, to broaden party membership, was largely ignored.

2016 was so fraudulent and illiberal with superdelegates throwing in with Clinton most everyone wanted them gone. What got negotiated is different than what was wanted.