If the election of Donald Trump has proven anything indisputably, it is that the notion of America as a “postracial” society in the aftermath of the Obama presidency is a canard. Yet how should we understand the specific pattern of race’s persistent salience in US politics? In Deep Roots, Avidit Acharya, Matthew Blackwell, and Maya Sen argue that it is the long legacy of chattel slavery that continues to shape politics in the US South in distinctive fashion. Comparing regions that were once marked by slavery with those that were not, the authors develop the concept of “behavioral path dependence” to describe the production and reproduction of a political culture marked by intergenerational racial prejudice. They argue that this legacy continues to shape US politics today in a fashion that is both understandable and predictable with the tools of empirical political science. We asked several scholars with expertise on politics and race, US political development, and political behavior to address this controversial argument.