the strength of her reform promises. But it isn’t Sanders or O’Malley who impugn her integrity; it is her Wall Street donors themselves. They are sophisticated, cynical and paying attention. And they are confident her new-found populism is a campaign posture, not a real position."

When the crooks come right out and say that they believe her "new-found populism is a campaign posture, not a real position.", why would Democrats back her? She doesn't even do a very good job of pretending to be supportive of the People.

Maybe the answer is here, http://www.democraticunderground.com/127710250