interview new york time columnist maureen dowd republican presidential candidate donald trump refer massachusetts sen. elizabeth warren pocahontas piece publish saturday dowd say ask trump trump receive negative comment republicans sen. elizabeth warren twitter feud trump respond question question say pocahontas jab part conservative conspiracy theory allege warren actually native american heritage claim apparently conservatives capable understand person mix racial ethnic background surprise consider tea party type capable understand man name barack hussein obama automatically muslim terrorist sleeper agent send destroy unite state inside.once trump denigrate person base racial line press issue trump fall back posture bully take ridiculous notion run know followers simply laugh up.however even republican candidate seem impervious gaffes criticism reconsider accuse someone invent identity recent report trump bizarre john miller scandal washington post marc fisher uncover audio record show trump invent fictional spokesman name john miller back 1970 80 90 s. period trump would pretend miller occasion john barron call reporters miller would say wonderful things trump attempt inflate trump personal brand.trump deny allegations though post report courtroom testimony trump admit create fictional personality.featured image photo david becker/getty image trump lash warren even racist attack last one