Thursday, James tore the scab off a festering Cuomo administration sore, exposing with hard data the lethal toll taken by the coronavirus in New York’s nursing homes last year. She thereby demolished the governor’s efforts to cover up an astonishing example of maladministration.

History suggests that Cuomo will get even for this betrayal — or burst a vein trying.

And, quite apart from the considerable merits of James’ report, a betrayal it is. The AG would still be New York City public advocate if it hadn’t been for Cuomo’s definitive assistance in the 2018 elections that lifted her to her present perch.

So, how sharper than a serpent’s tooth it is to have a thankless child, and all that jazz?