Congress has the right to call up an army, they can deploy the federalized national guard, they have added the right to require that State's maintain a State Defense (separate from the State's National Guard). but the Federal govt cannot deploy a federalized unit of the national guard to a State they don't recognize their nat guard.
The issue there is that another national guard force could come in and claim federal status and tell the locals to stand down... :(
Congress has the right to call up an army, they can deploy the federalized national guard, they have added the right to require that State's maintain a State Defense (separate from the State's National Guard). but the Federal govt cannot deploy a federalized unit of the national guard to a State they don't recognize their nat guard.