Counterpunch has the article Single-Payer Bernie Morphs Into Public Option Dean.

And PNHP, in a paper titled The Public Plan Option: Myths and Facts, says that

“the current Medicare experience combined with experience in many different states that have tried this type of reform shows that public plans are left with the sickest patients and fail due to rising costs while the private insurers continue to collect premiums from the healthiest patients and maintain their high profits.”

We have to be very wary of what Senator Sanders proposes.