The assault on the United States capitol on January 6, 2021, was entirely predictable-the anger, the conspiracy theories, the tribalism, even the violence. It was the culmination of decades of traumatic social and economic change that has awakened evolutionary fear and ancient bias. Fear of "others," of being left behind, and of the loss of sacred traditions and norms. Primal Fear describes the evolutionary roots and contemporaneous drivers of this fear and how the determined actions of our political leaders, and the daily commitment of each of us, can diminish America's divisiveness and create a sense of common purpose.