He estimates the price tag for a wall to line all 1,900 miles of the border will start at $15 billion.
We don't need 1,900 miles. We need 1,000 miles, so his estimate would be right in line with what Trump thought the wall should cost early in the campaign which was $8 to $10 billion. Of course the wall got taller the more Mexico wailed.

It would be nice for a Texas company to get the bid, but no illegal labor. We must be very very strict about that all the way down the line to the subcontractors.