president trump put bed leakers hopefully go expose see statement doj appoint former fbi director robert mueller iii special counsel investigation possible russian interference presidential election wall street journal report deputy attorney general rod rosenstein announce appointment attorney general jeff sessions recuse investigation relate 2016 race mr. rosenstein say statement determine public interest exercise authority appoint special counsel assume responsibility matter caution decision result find crimes commit prosecution warrant sign order wednesday mr. mueller former federal prosecutor serve fbi director 2001 2013 reputation independence mr. mueller partner wilmerhale law firm step role avoid conflict interest accord justice department.notice justice department statement state investigate relate matter open worm leakers fair game president release statement break former fbi director appoint jeff session doj russia probe