well, let's go to the videotape. >> we're going to build a wall, and it's going to be impenetrable. it will be a real wall. it's not going to be a little wall. it's going to be a big, beautiful wall. >> what are the walls going to be made out of? >> i'll tell you what it's going to be made of. it's going to be made of hardened concrete. concrete plank. pre-cast, boom, bing, done. keep going. walls are easy. pre-cast concrete. going very high. china built a wall that's 13,000 miles long 2,000 years ago. and my ambition is to have ours be much higher. the wall just got ten feet higher. is it going to be 45 feet or 40 feet? that could very well be. it's going to be a very tall wall, very strong wall, very powerful wall. it's going to be a beautiful, gorgeous, big wall that they're going to name trump someday. that's why i'm going to make it. someday they'll call it the trump wall, so i have to make it beautiful. it's going to have a big, fat, beautiful door right in the middle of the wall. there are some areas that you have to see through. you have to be able to see through to the other side in