It has been already proven several times, Trump is a pathological liar. Of course he knew that the new healthcare plan will benefit the rich and hurt the poor and elderly. He had several meetings with healthcare CEOs and Paul Ryan already. He is saying it will be “negotiated” to appease his followers, which he knows will still vote for him even if they get hurt because they will somehow blame it on Obama (the black fall guy). All he has to do is promise fantasy future legislature just like when he promised to release his taxes. That is his strategy keep on promising but never actually deliver and when he does he (and his cohorts) already stole the treasury and it will not matter anymore.