Warren Supporters Have Vowed to Persist

But are the flaws in the Sanders campaign significant enough that backing Joe Biden's "establishment" bid is the best political choice for them?

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Let's start with this question: Is there a Democratic Party "establishment"?

David Plouffe, who was on the News Hour last week talking about his new book and a radically pruned Democratic presidential candidate field, says there isn't. I guess Plouffe (pronounced "Pluff" — I have been calling him "Plo…