Place a 17% tax on all of the money (billions annually) being sent back home to Mexico and Mexico pays for the wall. Take the 80,000 illegal aliens in Federal prisons and the (possibly 800,000) illegal aliens in jails and state prisons across the country and put them on the border building the wall and Mexico builds the wall. Put Sheriff Joe in charge. The wall could be built for millions and not billions if that was done. I didn't come up with the idea, but I certainly like it.