“It’s so much money, I don’t know what to do with it … But on the wall, they skimped…I could do the wall over a longer period of time, I didn’t need to do this, but I’d rather do it faster. I want to get it done faster, that’s all.”-President Trump on a record $23 billion spending bill for border security measures and the National Emergency Proclamation:, 15 FEB 19
https://m.washingtontimes.com/news/2019/feb/15/trump-declares-national-emergency-border-wall/
And see:
10 U.S.C. 2808
And see
10 U.S.C 284
And see
10 U.S.C 331-334