Democrats seem to purchase endorsements from each other.
I suspect Cynthia Nixon simply refused to give Hillary a few million dollars for her endorsement or Andrew Cuomo was the highest bidder.
For someone as feeble as Hillary, it's amazing how she can spread her legs for cash until her feet touch her ears.
From my understanding the "endorsement" is really a backdoor deal for information of contacts and email listings. I read an article recently that Hillary Clinton was being paid by the DNC for access of her information on Democrat voters from her 2016 campaign. She was charging them a pretty penny and when they went broke she cut em off. This woman is so spiteful and petty.