A research synthesis points to the "added-value"--benefits to social and emotional development, as well as learning outcomes--for students of color taught by teachers of color. Given ongoing education debates, policymakers can use this evidence base to craft legislation aimed at increasing the ethnoracial diversity of the U.S. educator workforce. To begin, historical research shows how Latinx and Black teachers have supported their Latinx and Black students' social and emotional development during state-sanctioned school segregation. Contemporary qualitative and quantitative research highlights how teachers of color improve social and emotional development, as well as learning, for their students of color. Implications for the reauthorization of the Higher Education Act are discussed.