Fort Sill was indeed used by Obama, most of these facilities were used by Obama. There may be some new additions due to the influx of people crossing... but that is because the problem is exactly what democrats keep saying isn't a problem.
Funny how dems are up in arms about the lack of facilities for the vast numbers crossing, yet in the same breath tell us there isn't a border crisis.
There is not a border "crisis." Immigration is at its lowest point since 1999. And when it was at its peak I don't recall Clinton calling it a border "crisis." Why are you so quick to accept trump fear-mongering?