After Mr. Biden got drubbed, political experts on TV kept saying black voters, long assumed to be his impermeable base, are in fact “fiercely practical” and “strategic” in their political decisions. To me this sounded like code for “they’re breaking off Biden” and “they’ll shock you by considering Bloomberg.”

This week a 2015 video went viral of Mr. Bloomberg speaking, in blunt terms even for him, of his support of stop and frisk, which he has now disavowed. It was assumed to be deeply damaging with black voters. But denunciation from black leaders was almost uniformly muted. There was talk of reflecting on mistakes, how it’s good to admit them, and those who do deserve forgiveness. You picked up an air of, “I will lambast him in a perfunctory manner but I won’t enjoy it because really, he’s been a friend.”

And he has. The black pastors of New York, who lived through those days with him and a decision they disagreed with, seem to like him a lot. He’s been making friends for a long time. His philanthropies have been generous for a long time. And this is not only local—watch for the Pastor Effect down South, where there will be a big push. This is what they’ll say: Mike has been a friend. He worked well and closely with us. And he stayed close—when he left office six years ago he didn’t turn his back.