A few days ago, Sen. Bernie Sanders, I-Vt., announced a far-reaching plan to reform K-12 education, and he’s coming for charter schools.

Sanders wants to halt federal funding for new charter schools, which are publicly funded but privately run, and ban for-profit charter schools outright. For many education activists, this change is more than welcome. As education consultant Andrew Rotherham put it in a column for U.S. News & World Report, “For-profit charters are barely more popular than cancer among the education crowd.”