washington lawyers michael flynn president donald trump former national security adviser tell trump legal team long discuss probe russian meddle u.s. election indicate flynn may cooperate investigation new york time report thursday flynn retire army general central figure federal investigation lead special counsel robert mueller whether trump aid collude russia boost 2016 presidential campaign probe hang white house since january u.s. intelligence agencies conclude russia interfere election try help trump defeat democrat hillary clinton hack release embarrass email disseminate propaganda via social media discredit russia deny interfere u.s. election trump say collusion flynn lawyer spokesman mueller decline comment thursday jay sekulow attorney trump say one draw conclusion mean anything general flynn cooperate president time report flynn lawyers share information trump legal team mueller investigation cite four unnamed people involve case newspaper report cooperation agreement end due rule aim prevent conflict interest lawyers represent clients move flynn lawyers stop communicate trump lawyers indicate flynn cooperate mueller time say although add proof development lead trump lawyers believe flynn begin discussions mueller cooperate accord time flynn serve 24 days trump national security adviser fire discover misrepresent contact russian diplomat vice president mike pence mueller inquiry look flynn pay work lobbyist turkish businessman 2016 addition contact russian officials flynn trump associate nov. presidential election reuters report june lawyer flynn son michael flynn jr. work father also investigate mueller accord person familiar matter decline comment flynn 's lawyers cut talk trump team signal mueller cooperation ny time