washington republican congressman michael mccaul chairman house homeland security committee say wednesday russians hack republican national committee computers rnc deny mccaul late tell cnn misspoke russians ... basically hack party national level give us concern motivations mccaul tell cnn interview republican national committee communications director sean spic quickly push back mccaul comment say twitter know breach republican network shortly thereafter cnn.com post statement mccaul clarify remark misspoke assert rnc hack intend say addition dnc hack republican political operatives also hack say mccaul u.s representative texas reuters report last month hackers target computer systems republican party organizations republican presidential nominee donald trump head democratic national committee donna brazile say tuesday organization hack russian state-sponsored agents try influence nov. u.s. presidential election debbie wasserman schultz resign dnc chair eve july democratic national convention wikileaks publish trove hack dnc email show party officials favor eventual nominee hillary clinton senator bernie sanders party nominate contest lawmaker say misspoke republican party hack