The massive, spontaneous uprising of 2020, in response to the police murder of George Floyd, was possibly the largest and broadest mass movement in American history. According to one poll, some 26 million people participated in the movement against police terror that came to be called Black Lives Matter, a diverse outpouring of people of all colors and walks of life, a majority of whom were white. The scale and power of the uprising express a total transformation of the relationship between the historic African American freedom movement, on the one hand, and the burgeoning class movement against poverty and exploitation on the other.