. Immigration is not a state law, but your original argument was that the States could not enforce Immigration Law, and they can. The can also shut down the Border crossing station at their will.
Hell...the State of Texas inspects EVERYONE crossing over from Mexico to see if they have alcoholic beverages....if so, they collect a tax on it immediately.
Hell...the State of Texas inspects EVERYONE crossing over from Mexico to see if they have alcoholic beverages....if so, they collect a tax on it immediately.