The locations of Federal Reserve District boundaries, and of the Banks within the Districts, were determined mostly by the geographic distribution of the U.S. population at the time the Federal Reserve System was created (1913), to accommodate local needs.
Mr Trump claims the total cost of the wall will be $10bn (Â£7.5bn) to $12bn. But estimates from fact checkers and engineers seem to be universally higher. Senate Majority Leader Mitch McConnell estimated it will cost between $12-15bn, as he addressed reporters at a Republican conference in Philadelphia.
Michael Montgomery, a consultant who helps developers estimate their projects' economic impact, says a building project on the scale of Trumpâs speculative wall should create between 21,200 and 25,600 jobs for at least the period of construction,â basing his estimate on the $12 billion to $15 billion budget mentioned by Senate majority leader Mitch ...