Sam Stockard and Anita Wadhwani report for the Tennessee Lookout, which is is part of the States Newsroom network. This article first appeared at Iowa Capital Dispatch.

Iowa Attorney General Brenna Bird is among a coalition warning the nation’s largest companies—many of which have diversity and equity programs—they could face legal action for using race-based policies.

A July 13 letter from Bird and twelve other attorneys general put Fortune 100 companies on notice they could be hit with legal action for violating the U.S. Supreme Court’s ruling in Students for Fair Admissions v. President & Fellows of Harvard College, which put an end to using race as a basis for admitting students to college. The attorneys general are targeting hiring and contracting too.