Now more than ever public education and multicultural education face daunting challenges. From federal efforts to privatize public education through vouchers, school take-overs, and charters, to the manner in which high-stakes testing has marginalized multicultural education in the curriculum and pedagogy of our nation's schools, and to the increased normalization of bigotry in daily interactions in classrooms and schools--educational justice is deeply threatened. Coalitions of educators, parents, and students that reach across lines of race, class, and immigration status are needed to push back in this challenging time. The stories of parents of color who stepped up to take leadership in the Opt-Out Movement in New York State offer insight and direction for others facing these threats. The purpose of the movement was to refuse participation in the state's high stakes Common Core tests. The experiences of these parents demonstrate the challenges families of color face when they become active in efforts to resist policies and practices harmful to their children and other young people. At the same time their successes can inform collective efforts for change.