February 10th, 2017 
(NBC NEWS) — President Donald Trump’s “wall” along the U.S.-Mexico border would be a series of fences and walls that would cost as much as $21.6 billion, and take more than three years to construct, based on a U.S. Department of Homeland Security internal report seen by Reuters on Thursday.
The report’s estimated price-tag is much higher than a $12-billion figure cited by Trump in his campaign and estimates as high as $15 billion from Republican House Speaker Paul Ryan and Senate Majority Leader Mitch McConnell.
The report is expected to be presented to Department of Homeland Security Secretary John Kelly in coming days, although the administration will not necessarily take actions it recommends.