Sturges, the publish of drilling through the core. Five years into the debate over common core we are at a critical juncture. It is shown to have the lowest approvals and it has dwindled from 26 states and washington to seven states and washington, d. C. It is no longer viable actually. Tests are not doing better. It is true to say there is Little Common purpose left in common core. So this volume we are releasing this morning, drilling through the core, is definitely a timely release. But five years into the this Great American education debate it is worth remembering what we are debating. It is not politics. But the debate is a contest between two distinct views. The first is common core standards are a state effort to improve k12 education and help children in under performing districts. The second view is the common core standard are of dubious academic quality and is a state and local issue. Drilling through the core is a book that strives to treat the first view fairly but argue