Yeah but the point is aside from delegations, they don’t assign visas to a state.
Look, just because something isn't done doesn't mean it will always be that way, or that it never was that way.
Lots of things can be done. We might even be able to IMPORT SUCH PERSONS ~ I don't see that the 13/14/15 th Amendments eliminated that particular clause.
The necessary implication is that we would be able to EXPORT SUCH PERSONS as well.!