>Especially considering his chummy relationship with POTUS as of late.
POTUS's mother and Cuomo's mother were acquainted. The same hairdresser, maybe. Not a stretch to think the Cuomo's and POTUS knew each other.
Also, the shit talk flying back & forth are terms of endearment in NY English. What it's translated into by the politically correct crowd doesn't mean too much to the native speakers.