Because a clear 1/3 of those voting on the primaries refuse to look or listen to anything Donald Trump has done or said before or after he said he would deport 11 million criminal invaders and build a wall.
Both issues there will cause major butt hurt by those so called supporters once he is President if he wins. Because as everyone clearly say in the last debate 'Everything is negotiable....'
Here is a Reality for all the Trump Supporters, He knows you will not walk away from supporting him regardless of what he says or does, so Like a battered Spouse you will take the abuse he will dish out.
Don't expect him to keep his word to you or anyone else, any more than he kept his marriage vows to at least two of his former wives.
Does carrying around all that hate hurt?