(1) I think we know.
(2) Winning is necessary. Winning isn’t enough. The question is what mandate the win delivers. See, e.g., Obama.
(3) As a liberal, I am endlessly grateful for anyone who makes sanity hearable. Bernie has done that a million times over. But sanity has no hope until we fix democracy. Not, as Sanders is saying, “in the long term,” but, as Warren says, now.