For the past 10 years, we've lived in IA, and participated in the evil caucuses in both 2008 and 2016. As we live in one of the larger cities here, Bernie did very well in our district, receiving an equal number of delegates as HRC. However, we are an anomaly, as the larger rural population skews much more conservative (hence the election of Joni Ernst to replace long time Dem. Senator Tom Harkin). Considering the massive head start HRC had in money, name recognition and, of course, having the backing of super delegates before a single vote was cast, it's amazing how strong a showing Bernie made in the state as a whole. But, the DNC couldn't allow the momentum to continue unchecked.
I didn't mean to insinuate that Warren would have beaten Trump (not saying that Bernie definitely would have either, as some people assert), only that if she had come forward then Bernie probably would not have run, but would have supported her candidacy instead.
Of course, Trump lied. He was just being a politician.
This discussion will contine forever, but one point you made is how well Sanders did in your district, but not so well in the rural areas. Actually I believe that having some liberals is a good thing as it keeps the party (or country) moving in a better direction.
But, the reality is whoever gets elected sets the destination for the country. And that is the problem for the Democrats for the next several elections. Getting elected and changing the direction of the country.
As for superdelegates, I'll bet there are still a lot of people in the Republican Party who wish they had had them so they could have stopped Trump and put a more intelligent/reasonable/competent Republican in the White House.
My fear, and that of many people, was that Sanders/Warren/Pelosi offend too many people who actually vote and that hurts Democrats.
As the DNC is beginning to acknowledge, winning the presidency doesn't matter a whole lot if you lose the Senate, the House, the governorships and the state legislatures.
The DNC needs to acknowledge the desires of the progressive liberals, but they also need to acknowledge the reality of how politics in America actually works. And where the money comes from.