“Our movement needs to see (Sanders and Warren) working together to defeat the corporate wing, not attack each other,” Democracy for America chairman Charles Chamberlain told CNN on Monday afternoon. “What we’re looking for them to do is to show that onstage Tuesday night and show solidarity.”…

“We’ve seen this movie before,” Chamberlain said, “and what did it do? It made it so that (Dean and Gephardt) were defeated by the establishment, as John Kerry came in first. We do not want to see that happen again.”…

“A back-and-forth about this private meeting (detailed in CNN’s story) is counter-productive for progressives,” PCCC co-founders Stephanie Taylor and Adam Green wrote, after criticizing any suggestion that a woman could not win the coming election.

Their statement included a time-sensitive appeal: “Going into the debate, Warren supporters should be talking about why her inspiring agenda and popularity across the party makes her best suited to unify and energize Democrats — and win swing voters to defeat Trump. That’s where our focus will be.”