The CEO and founder of The Limitless Leader, a leadership coaching and consulting firm that helps people learn how to better serve their community, company and personal careers, Hemphill has two decades of experience as a teacher, administrator, state director and adjunct professor.

Near the edge of the Phoenix metro's urban sprawl, surrounded by a wide expanse of saguaro-studded scrubland, Dream City Christian School is in the midst of a major expansion. Just a few miles away, the public Paradise Valley Unified School District is shrinking, not expanding.

The tactics for attacking segregation today are different from those employed in school districts generations ago. Across the city, some local districts and schools are trying other ways to mix student bodies without explicitly using race, as a way to avoid limits created by past Supreme Court cases.

A slew of education leaders in several states, including Florida, Texas, Montana, Oklahoma and South Carolina, publicly advised school districts not to comply with the Biden administration's ruling.