Jerrold Nadler actually said...

No President can be allowed to violate his or her constitutional duties, nor can any President be allowed to obstruct a congressional invest...

It is certainly the case that conversations about criminal actions are not official White House business, without question.

I believe the Nixon case established the very ironclad principle that discussions regarding criminal acts are not privileged.

The plain import of what I said was that he is violating the law by refusing to answer these questions.