There's been a lot written lately about how Democrats are going to have to start working out details about single payer if they're serious about running on it. Now, we're getting a better idea of how Bernie Sanders will address some of them — though not all of them — in the "Medicare for all" bill he hopes to introduce next month.
The bottom line: It will give some basics on how to handle one of the main practical issues: how to manage a transition to the new system, according to aides. But don't expect a detailed explanation of how to pay for it, which of course is one of the biggest questions everyone will ask. And no, private insurance companies wouldn't have much of a role to play.