One of the reserved powers which the states have never relinquished is the original power to protect against invasions and protecting themselves from an unwanted flood of foreign nationals.
The delegated power over naturalization granted to Congress is very limited in its scope and merely authorizes Congress to determine the process by which a foreign national, already in the country, may become a naturized citizen.
The bottom line is “Naturalization” involves the process by which a foreign national, who is in our country, is granted citizenship. Immigration involves a foreign national traveling to and entering the United States.
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Congress has been delegated a power regarding “Naturalization”, not “Immigration”.
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Congress has not been delegated a power to force upon any state a swarm of unwanted foreign nationals i.e., immigrants who are not citizens of the United States.
BTW Doug, you participated in THIS THREAD in which I provided documentation concerning immigration vs naturalization.
JWK