In my nearly two decades as a teacher, I have not seen a more comprehensive and forward-thinking plan as Senator Bernie Sanders’s K-12 education plan. That plan, along with Sanders’s unwavering support for teachers’ unions and the labor movement more broadly throughout his political career, make the choice for a presidential endorsement clear: American teachers’ unions must endorse Bernie Sanders for president.

Sanders’s education plan reads as both a promise to our young people that they shall have access to equitable, high-quality resources in their classrooms and as a repudiation of two decades of failed education reforms. The most prominent example is Sanders’s inclusion of a moratorium on new charter schools, as advocated by the NAACP.

Diane Ravitch, a former proponent of the publicly funded, privately managed schools, now refers to them as a “colossal mistake.” Charters have been shown to resegregate school districts and offer no better outcomes than neighborhood public schools.