Not all Trump Conservatives including myself agree with Trump on "The Wall". IMO the money would be much better spent on expanding border agent numbers and drone/IR detection technology. If you build a 30 foot 1000 mile long wall, you have created a challenge and any desperate human being will find a way to climb it. If on the other hand you demonstrate that you have effective 100% surveillance over the entire border and prove that anyone crossing the border is caught within hours then the crossing attempts will stop or at least slow to a trickle. That is the goal, isn't it? I don't believe you accomplish the goal with a giant wall.