The NYC political machine would literally assassinate him before they ever let a mayor who even pretended to give two shits about not-Wall Street in. This is the same city that spent $240 million hiring cops to arrest people for turnstile hopping to try and prevent $200 million in lost subway fares, and that was under a mayor who was about as left-ish as you could conceivably get without the NYPD deciding regime change is needed