13th september story refiled correct headline first paragraph make clear document release early breach new hack washington head democratic national committee say tuesday organization hack russian state-sponsored agents try influence u.s. presidential election may release document similar leak july roil party link document post wikileaks twitter account attribute allege hacker guccifer 2.0. release come presentation tuesday person speak behalf guccifer 2.0 london cyber security conference politico report reuters could immediately access document one person stand benefit criminal act republican presidential nominee donald trump dnc interim chair donna brazile say statement trump embrace russian president vladimir putin publicly encourage russian espionage help campaign say trump july invite russia dig email clinton time secretary state prompt democrats accuse urge foreigners spy americans late say speak sarcastically trump campaign immediately respond request comment debbie wasserman schultz resign dnc chair eve july democratic national convention wikileaks publish early trove hack dnc email show party officials favor eventual nominee hillary clinton u.s. senator bernie sanders party nominate contest three senior officials also step dnc leak anticipate additional batch document steal russian agents would release say brazile take wasserman schultz interim basis democratic party source say party clinton presidential campaign deeply concern possible publication wikileaks hackers new torrent potentially embarrass party information ahead nov. election u.s. democratic party say document leak blame russians