washington federal bureau investigation decline give house oversight committee document request regard communications former fbi chief jam comey president donald trump head panel say thursday fbi say still evaluate request committee-set deadline wednesday light appointment special prosecutor look possibility collusion trump presidential campaign russian officials seek influence 2016 election accord letter release committee chairman jason chaffetz respond letter chaffetz say still want relate document would outside scope special counsel investigation list document find within scope probe june seek good understand comey communications white house attorney general way implicate special counsel work chaffetz say letter chaffetz make initial request document new york time report comey write memo trump ask halt fbi investigation tie former white house national security adviser michael flynn russian officials chaffetz panel one several congress investigate allege efforts russia tip election trump possibility trump associate coordinate moscow members senate intelligence committee make easy wednesday panel obtain document investigation chairman republican richard burr tell reporters members agree unanimously allow mark warner top democrat issue subpoena see fit without vote committee controversy engulf trump administration since fire comey may 10. moscow repeatedly deny allegations trump deny collusion fbi letter chaffetz thursday note appointment former fbi director robert mueller last week special counsel investigate issue light development considerations undertake appropriate consultation ensure relevant interest implicate request properly evaluate letter say house panel chairman say fbi decline meet request comey-linked document