Possibly so, but that doesn't begin to address the point I raised, which is about back voters' perception of Bernie Sanders -- that is, a lot of black voters, and older black voters in particular, don't trust him, and don't believe he has their best interests at heart.
That is, Sanders and Biden have both been in politics for a long time and, during that time, one has won the trust of older black Democrats (who've had the longest to observe the two of them) and one hasn't.
You may well be correct that these voters' trust in Biden is misplaced, or that they are mistaken not to trust Sanders to refrain from selling them out if it becomes convenient, but the fact is that it's their trust, or lack of it, in the two candidates that's driving their votes, not their views on the candidates' policies.
This same problem -- distrust of the leader rather than disagreement with his policies -- is one of the many reasons Labour lost so badly here last December, so it's an issue that particularly concerns me.
Anyway, I'm wondering if you have any views on this assessment (other than that they're wrong and they should trust Sanders, of course)?
What do you think he can do, or should have done, to remedy this?
It's a problem, and a big one, for Sanders and his campaign that one very important Democratic constituency don't seem prepared to support him.
How, in your view, can that be fixed?