It was a private meeting. All the candidates and everybody in general have private meetings. When somebody gives out information from a private meeting they are betraying a confidence.
Cruz or anybody has no obligation to give out information about what they said at a private meeting.
Once the audio is released, it is nonsense not to admit that is what you said.
True. Then Cruz should have said just that and nothing more, rather than implying that the report was a lie or a distortion.