The results of the 2020 Census are in, and the big takeaway is clear: The multiracial future of America is no longer “the future.” It’s the here and now. Big cities like Boston and New York became more diverse over the last decade, but some of the most profound changes took place in the nation’s suburbs. Suburban towns like Duluth, Georgia, and Sugar Land, Texas, which were once known as bastions of white flight, have now become among the most diverse places in the country. Indeed, half of all people of color in metro areas now reside in suburbs rather than in urban city cores. The politics of suburban America have already started to feel the impact.

But the growing diversity of America has also produced backlash, and a threat to the emerging multiracial America that is clear and present without swift congressional action.

A record number of restrictive voting measures are moving through state legislatures. And in the suburbs, where multiracial coalitions have increasingly started to compete for and […]