Refer to the article at Breitbart now about some Arizona border ranchers inviting Nancy Pelosi to come see what a failure are the fences built during the Obama administration, that millions of illegal aliens have passed through there over the last few years, what Nancy calls good fence! So obviously Trump’s 30′ high U. S. steel slat security fencing is needed there, to replace Obama’s fences which obviously were designed and installed to fail, that open borders continue to weaken the U. S.