You don't have to speculate though. You could look for more information, as another user did, or just agree that it seems over the top and possibly exaggerated. Instead you're making up scenarios for why an egregious act must have been warranted. And surprise surprise, the actual facts bear no resemblance to what you imagined.
Zaktor
Sure thing, wish for this perfect future where good politicians just spring up organically rather than expect a politician here and now in reality to have any sort of successful plan.
And give me a break with this 'blame Warren' crap. When she was leading and Bernie had just had a heart attack, he stayed in rather than bowing out to build momentum. Two egotistical politicians both thought they had the right (or responsibility) to stay in a race to represent their ideas and politics. Warren's voters definitely 100% would not have made Bernie win, and in all likelihood a Warren polling at 50% still wouldn't have caused a runway as all the others suddenly decided the economics of M4A was the most important issue for Democrats to spend the entire primary on.
Except now one of these egotistical politicians is preparing people to take over and the other doesn't seem to have any plan for what happens after he retires or (more likely) dies in office.
That's the whole thing this is all about. A new party competes against the main party in general elections. Otherwise, whatever the name says, it's just a caucus. The Democrats already have the Justice Democrats recruiting progressives to run in primaries. They also have the Working Families Party, which is closer to a real party than either the Justice Democrats or the Tea Party, but they still don't really compete with the Democrats outside of primaries (they go "head to head" in New York, but usually to represent votes for the same candidates).
Then they're going to stop paying taxes you morons!