Trump's wall does need more explanation from him than the Mexicans will pay for it, like how his original budget was under 3 billion then slowly climbed to 17 billion and how effective it will be when the majority of immigrants enter the country legally, then simply over stay.Does the 17 billion cover the cost of the infrastructure to build the wall and the cost of repair and manning it. Also, isn't there already a fence? It might be time to get into the ladder business.