Charter opponents often try to delegitimize strong testing results like those in Boston by attributing them to excessive test prep - as New York City Mayor Bill de Blasio did recently.

It is unimaginable that anyone, right or left, can aspire to be president without having thought about this. Every candidate has the stage; the Republicans have used it to fuss unproductively over the Common Core. The Democrats have all but refused to speak.

If Boston charters can be stymied despite their extraordinary success, charters anywhere can be stopped.

Campbell Brown Quotes