America's race categories face a stress test

The next great civil rights battle may be whether America's old racial categories can keep up with its future.Why it matters: The U.S. is heading toward a more Latino, Asian, Black immigrant and multiracial future — and the rules for counting race will help decide who gets political power, civil rights protections and public resources.Zoom in: Two massive generational shifts will redefine the nation...Multiracial dominance: Multiracial Americans are on track to likely dominate the population over the next two centuries.Trade with Latin America could blur lines of migration and citizenship.State of play: For decades, federal racial categories have been the foundation for enforcing anti-discrimination laws, drawing political districts and measuring inequality. If identity becomes completely fluid, or if old boxes break down, the very legal tools used to protect marginalized communities could weaken.The bottom line: The question isn't whether America will diversify, but whether a civil rights enforcement system built on 20th-century boxes can govern a 22nd-century nation.This story is part of an Axios Deep Dive on the policy debates shaping America's future. Read more in the series:America's killer app: The dollar as the world's currencyAI oversight gap could leave a lasting legacyThe power decisions that could shape the next centuryThe fight over America's vaccine futureABC's FCC battle could redefine press freedom