How is he going to build the wall when the GOP had the Congress under Ryan and they refused to fund it, and now the Dims under Piglosi refuses to fund it?
Technical question. Now that 1+ $billion has recently been approved for border security, how long will it take to build it?
Institute a TSA airport style security check at all legal border crossings with Mexico, charge the security fee of $100 for each person tryiing to enter into USA.
Do the same type of thorough screening of passenger cars ($100) and trucks ($500).
Use the security fee proceeds to fund these increased security measures and use the rest of the money to further fortify the border.
There is no need to ask Congress for additional funds to build the wall/fence.