“What prevents the governors from the border states from calling up the National Guard to secure their borders?”
IMHO the inaction of governors is all about maintaining funding by the Feds. Feds threaten to cut off money for whatever project the state may be working on or planning and the governors roll over and show their bellies.
This is what happens when a strong central government controls the purse strings, and now that Congress is Obama’s bitch I see no way to change it.
The governors need to act together, all of them.