For the last few weeks, we've talked about the origins of the racial wealth gap. This week, we're turning our attention to one of the first major efforts to create more economic opportunity for Black Americans: Affirmative action in education. Kelsey Butler takes us to California, a place that for decades had strong, successful affirmative action measures, until one day, it didn't. She explains what getting rid of the policy meant for Black and white graduates, and why reinstating it isn't enough to close the wealth gap.