washington democratic senator say tuesday want answer top justice department officials career prosecutor ask resign days special counsel unveil first criminal charge investigation russia role 2016 u.s. election dana boente ask quit late october u.s. attorney eastern district virginia whose district play important role investigation days late special counsel robert mueller investigators charge president donald trump former campaign manager paul manafort another aide rick gate conspire launder money charge also announce oct. 30 third former trump adviser george papadopoulos plead guilty early month charge lie fbi u.s. senator chris coons member senate judiciary committee say write u.s. attorney general jeff sessions deputy attorney general rod rosenstein ask boente departure normal justify concern abrupt departure dana boente career federal prosecutor ... lot circumstances connect ongoing mueller investigation eastern district coons say interview department justice spokesman say agency comment personnel matter boente could immediately reach comment investigations whether republican trump campaign associate collude russia last year help defeat democratic nominee hillary clinton presidency arise u.s. intelligence agencies conclude russia carry campaign hack propaganda interfere election russia repeatedly deny meddle allegations trump deny collusion justice department veteran boente step help stabilize law enforcement agency frequent periods turmoil first year trump administration boente also temporarily serve act assistant attorney general department national security division previously act attorney general trump fire prosecutor post sally yates boente also briefly act deputy attorney general person familiar matter confirm sessions former alabama republican senator close trump ally ask boente tender resignation late october boente step head national security division trump nominee john demers confirm senate boente continue head eastern district alexandria virginia replace trump yet nominate anyone post eastern district post fourth powerful position department line succession judge district approve search warrant alexandria virginia home former trump campaign manager manafort july grand jury district early year become part mueller probe former national security adviser michael flynn scrutiny work lobbyist turkish businessman senator seek explanation career u.s. prosecutor 's abrupt resignation