Rising opposition to the Common Core Standards (CCS) has undermined implementation throughout the country. Yet there has been no scholarly analysis of the predictors of CCS opposition in the populace. This analysis uses poll data from a statewide poll of California voters to explore the demographic and policy predictors of CCS opposition. We find opposition strongly associated with views about President Obama, several education policy issues (especially testing), and two mis/negative conceptions about the standards. We advocate future work using poll data to understand public opinion on education issues.