washington/new york special counsel investigate possible collusion president donald trump 2016 campaign russia ask white house officials preserve record meet last year president eldest son russian lawyer accord source knowledge request special counsel robert mueller send document preservation request white house say june 2016 meet donald trump jr. trump tower new york relevant investigation source say friday white house counsel office relay request routine part early phase investigation members white house staff wednesday source say news early month meet trump jr. russian lawyer tell damage information father presidential rival democrat hillary clinton fuel question campaign deal moscow republican president defend son meet simple politics trump son-in-law white house senior adviser jar kushner former trump campaign manager paul manafort also attend meet senate judiciary committee call trump jr. manafort testify next wednesday public hear russia probe committee say statement late friday trump jr. manafort agree negotiate panel whether interview committee members document seek committee say issue subpoena appear wednesday hear reserve right house representatives intelligence committee say would interview kushner tuesday mueller appoint justice department may probe allegations russian interference election potential collusion trump campaign issue engulf six-month-old administration trump long express frustration probe call political witch hunt deny collusion moscow deny interfere election campaign try tilt november 2016 vote trump favor document request type send mueller generally cover email text message voicemails note record counsel look indication president know meet son plan might suggest topics discussion source say mueller would also inquire whether trump brief meet afterward well discuss source say mueller would interest source say topics discussion u.s. economic sanction russia possible russian investments unite state elsewhere possible lift russian ban americans adopt russian children russia impose adoption ban retaliate 2012 magnitsky act impose sanction russian individuals punish russia human right violations russia ambassador washington overhear u.s. spy agencies tell boss discuss campaign-related matter trump adviser jeff sessions last year washington post report friday cite current former u.s. officials sessions u.s. senator time attorney general initially fail disclose contact ambassador sergei kislyak say campaign pressure disclose meet kislyak sessions recuse russia probe march recusal anger trump say new york time interview week would choose sessions attorney general know sessions would recuse nl1n1kb0un newspaper report say trump lawyers review ways limit undermine special counsel washington post new york time thursday cite unidentified people familiar strategy trump attorney contact reuters john dowd deny report praise mueller think straight honest guy dowd say dowd say communications mueller productive confidence go right thing another trump lawyer jay sekulow tell time address possible conflict interest mueller team would appropriate decline comment specifics senior white house adviser kellyanne conway refer friday report members mueller team make donations democratic party people know folks paths motivations political motivations say fox news interview accord post trump ask advisers power pardon aid family members even connection russia probe trump lawyers discuss president pardon power second person tell newspaper dowd dismiss pardon report nonsense true say separately spokesman trump legal team mark corallo confirm resignation friday lead attorney marc kasowitz take reduce role outside legal team accord media report recent change include hire veteran washington lawyer ty cobb white house job handle responses russia probe nl1n1k60c4 special counsel ask white house save trump jr. russian meet document