he is not reallocating or moving anything.
With the NDAA (National Defense Authorization Act of 2018 / H.R. 2810) and passage of “Consolidated Appropriations Act, 2018” Congress has provided both the Authorization and funding (appropriations) for any construction the POTUS deems necessary.
LS needs to catch up.
As CINC, Trump will use the Army Corps of Engineers, especially the Greencastle Corps to build the wall using the funds allocated for military construction of ‘National Defense’ structures.
Greencastle, Indiana, VP Mike Pence’s stomping grounds.
The President is declaring a National Defense structure to be built under his authority using funds allocated by Congress for military purposes.
Of course, there will be a lower level liberal judge that will rule to stop construction. My bet is SCOTUS will overrule that decision in record time.