Did he know the meeting was being recorded ?
Most interviews like that are.
According to current reports, yes, it was a scheduled interview for a book biography which are typically always recorded. Also according to current reports, more than one of the people who were in the room have corroborated the event as described. But several laws could have been violated, not just having the classified info outside of an approved facility, but discussing if not actually showing the contents to others. Guess we'll see who they are and how this actually plays out eventually.