and then there's this. the signature promise of the trump campaign. >> going to be a very tall wall, very strong wall, very powerful wall. it's going to be such a beautiful wall. it's going to be so big. it's going to be so powerful. it's going to be as beautiful as a wall can be. and who's going to pay for the wall? >> mexico! >> who's going to pay for the wall? >> mexico! >> who? >> mexico! >> mexico's going to pay for the wall, and they understand that. we need security. we need the wall. we're going to have it all. >> yeah. big, beautiful wall with a big, beautiful door in it. remember that? he didn't say a big fence with a gate in it. big, beautiful wall with a door. who's going to pay for the wall? anybody? who's going to pay for the wall? >> mexico! >> no one. >> right. >> doesn't look that way. two white house aides tell cnn that the president probably has