I bet he can do it for a fraction of that. But it would be money well spent.NOt including the fence, that Mexico does not have the money to pay for, and would not pay for, even if they did, especially since a large % of illegals are from other countries.
"Back in 2011, Immigration and Customs Enforcement (ICE) deputy director Kumar Kibble said it costs $12,500 to deport an individual undocumented immigrant.
So when you multiply that cost for the estimated 11 million undocumented immigrants living in the U.S., that comes to $137.5 billion."
Donald Trump s Deportation Plan Would Cost 100-200 Billion - NBC News
All he has to do is enforce the laws that are already written and most of them will leave voluntarily. If they can't get free health care and can't make a living.....they'll leave.