Steve Rattner has not yet isssued a legal response to the charges brought against him by Andrew Cuomo, but he has filed a Petition in Aid of Arbitration. That would be in reference to a private arbitration with Rattner's former Quadrangle Group partners, which now is being thrust into the public sphere.
A quick read suggests that Rattner is arguing his innocence against Cuomo's allegations, kind of like he did via short statement earlier today. Of course, such protestations would carry more weight had Rattner not also settled with the SEC over the exact same matter.
I'm going to read through this thing and blog more about it tomorrow. In the meantime, here it is: