As Arne Duncan, one of the longest-serving Secretaries of Education, announces his forthcoming resignation, observers are starting to reflect on his impact on education policy in the nation. Duncan will most likely be remembered more for his focus on K-12 education, not surprising given his background as the superintendent of Chicago Public Schools, third-largest school district in the country. In that domain, he was known mostly for extending the Bush-era focus on accountability via testing. And it was that focus that led him to be reviled by many in traditional K-12 schools. As education historian and commentator Diane Ravitch wrote in the Huffington Post recently, “It will take years to recover from the damage that Arne Duncan’s policies have inflicted on public education.”