The best argument for Bloomberg AND Cuomo is that they represent the bottom of the slippery slope. They embody "give them an inch they will take a mile". In NYC crime and murder is 50% of what it was 20 years ago and yet we have more restrictions now than ever (7 round limit, registry of handguns and "assault" weapons, fees for ownership, fees to renew, etc.). When people ask what's the big deal about expanding background checks you can show them how this is just the camel's nose in the tent.