To save our democracy, Americans need to restore the basic norms that once protected it. But we must do more than that. We must extend those norms through the whole of a diverse society. We must make them truly inclusive. America’s democratic norms, at their core, have always been sound. But for much of our history, they were accompanied—indeed, sustained—by racial exclusion. Now those norms must be made to work in an age of racial equality and unprecedented ethnic diversity.

