Barack Obama's historic presidency has re-inserted mixed race into the national conversation. While the troubled and pejorative history of racial amalgamation throughout U.S. history is a familiar story, The United States of the United Races reconsiders an understudied optimist tradition, one which has praised mixture as a means to create a new people, bring equality to all, and fulfill an American destiny. In this genealogy, Greg Carter re-envisions racial mixture as a vehicle for pride and a way for citizens to examine mixed America as a better America. Tracing the centuries-long...