Charter schools offer many cities a palatable mechanism for offering greater choice to families in the field of education. They do take some public funding, and they often rely on state infrastructure to operate, but these qualities ought to be weighed against the alternative, which is incompetent and corrupt state monopoly of education, especially in cities with greater levels of low-income households. The choice alone has helped revitalize competition in one of the most sclerotic and venal arms of the government apparatus. With the proven enhanced performance, wide popularity, and general social improvements charter schools provide it would seem like a no-brainer for city government to support.

Yet in New York City, the new mayor, Bill de Blasio, has been waging all-out war against the burgeoning charter school movement in his city.

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