New York Governor Andrew Cuomo has consistently and petulantly undermined New York City Mayor Bill de Blasio since the mayor took office, but the feud only recently went on the record. Following an Albany legislative session in which Cuomo blatantly denied de Blasio various legislative victories — and cynically attempted to attack the more liberal mayor from “the left” — Cuomo rubbed salt in the legislative wound by delivering a brutally critical appraisal of Mayor de Blasio’s legislative acumen and political savvy. This came in the guise of a Daily News interview with “a top Cuomo administration aide.” (At least, that is what everyone believes, and what the governor has not denied.)