jar kushner senior white house adviser son-in-law president donald trump interview special counsel robert mueller office begin november accord source familiar process part interview last approximately 90 minutes kushner quiz mainly interactions meet general contact former national security adviser michael flynn well son regard flynn private business deal firm flynn intel group mr. kushner voluntarily cooperate relevant inquiries continue kushner attorney abbe lowell say statement give nbc news.the news kushner interview first come light grand jury testimony relate flynn private business deal postpone prosecutors work mueller reason still unclear postponement come week flynn attorneys alert president trump legal team information relate case could long share two party allow publicly comment matter uncommon defense team share information practice consider unethical conflict interest arise donald trump ever particularly concern matter trivial ethics fact flynn attorneys long share information trump legal team way proof flynn cooperate special counsel decent sign work trump team expect quite time probably plea deal jay sekulow member president trump legal team tell cbs news early month assumption plea necessarily mean anything president manafort indictment anything campaign trump michael flynn serve head defense intelligence agency fire position 2014 former president barack obama however still retain security clearance even trump presidential campaign transition white house flynn role terminate 23 days trump presidency possible cooperation flynn prosecution could give mueller counsel insight trump campaign operations potential deal russia well first weeks presidency.the fbi already look flynn trump lobby flynn intel group research work unfinished film firm pay 530,000 turkish businessman employees sphere consult public relations work film turn document request mueller investigators sit voluntary interview several months.featured image via olivier douliery pool/getty image source confirm robert mueller office interview jar kushner several weeks ago