Last week, New York Magazine‘s Jonathan Chait published another of his long rants about the failure of public schools, the glories of charter schools, and all the reasons he disdains teachers unions.  Chait begins:

“In the dozen years since Barack Obama undertook the most dramatic education reform in half a century—prodding local governments to measure how they serve their poorest students and to create alternatives, especially charter schools, for those who lack decent neighborhood options—two unexpected things have happened.  The first is that charter schools have produced dramatic learning gains for low-income minority students… What was ten years ago merely an experiment has become a proven means to develop the potential of children whose minds had been neglected for generations. And yet the second outcome of the charter-school breakthrough has been a bitter backlash within the Democratic Party.  The political standing of the idea has moved in the opposite…