This offers an explanation for why liars like Trump have such traction."A recent study, to be published in the Journal of Experimental Psychology: General, found that reading a false statement (say, "The Atlantic Ocean is the largest ocean on Earth") made people more likely to rate the statement as true when they encountered it a second time--even if they were told on both readings that it might be false, and even if they later demonstrated that they knew the Pacific was in fact the largest ocean. Exposure breeds familiarity, which fosters credulity--even when you know better"