Black voters and the 2016 primaries, Part 2: The establishment firewall

This is the second part of a three-part series on the role of black voters in the 2016 Democratic primaries; the first part is here.

In my last post in this series, I analyzed six months of biweekly crosstabs and teased out three key indicators of black support for Democratic candidates: name recognition, favorability, and preference. I concluded that wh…