Bernie Sanders has an idea.  Now he needs a plan.  Though he has sketched out the “Medicare for All” pro­gram to move us toward a Sin­gle Pay­er health sys­tem, the details he has shown so far prompt­ed the Mer­ca­tus Cen­ter at George Mason Uni­ver­si­ty to claim that it would cost $32.6 tril­lion over ten years…and, yes, that would involve high­er tax­es.  And that’s just the ini­tial estimate.