She is beating Sanders handily only where there is a large black population. That works when the Dems choose a candidate.
I doubt that is enough to beat a Republican candidate. The Dems never win the South.
So basically, she has to do far better in states with fewer black people ... the ones the Democrats usually win.
But Trump is winning by quite a margin in those states. States like Michigan, Ohio and Florida are where the election will be won or lost. And she is underperforming. Damn.