Farai Chideya at FiveThirtyEight smartly addresses the question of why Bernie Sanders ran so much better among blacks in Michigan than she had in the South. On Tuesday Mississippi blacks voted about 88 percent for Hillary Clinton while a significantly different 65 percent did so in Michigan. Chideya wrote:

“[B]lack Americans have a variety of regional narratives that have shaped and will continue to shape the voting in the Democratic race. In the South, due to massive voter suppression before the civil rights era, there developed strong community mechanisms (often tied to institutions including churches) to mobilize voters once the civil rights acts were passed. Northern black voters had different voting patterns — more ability to vote earlier, historically; and different mechanisms of mobilization. But I also think the poisoned water and governance debacle in Flint has provided a backdrop for Sanders that resonates with Northern and Midwestern voters. I also wonder — but do not know — whether less Southern-style faith-community political mobilization means that television advertising will have more of an impact on black voters in the North and East.”