First, it's not identical. You can read Arizona SB 1070 and compare it Title 8 of the U.S.C.
See my post above. For all intents and purposes, it's identical.
Second, ever since we did away with the Articles of Confederation, we have a system where the states are not in fact sovereign nations, and the supremacy clause of the U.S. Constitution notes that federal law is "the supreme law of the land". States cannot rewrite Federal law. There are points where the Arizona law conflicts with Federal law.
First of all, I don't believe there are any points where the Arizona law actually "conflicts" with Federal law. It may contain a few provisions not in the Federal law, but none actually "conflict" with the provisions in the Federal law, nor with what was the intended purpose of the Federal law.
Second, many state laws, particularly environmental ones … like those in California, are more strict than Federal law, yet those aren't viewed as unconstitutional under the Supremacy Clause. Why not? And if that's allowed, why can't a state pass a law that imposes even harsher penalties in this case?
Third, the Supremacy Clause only applies if enforcement of the state law would frustrate what were federal intentions in the Federal law. This law clearly does not. It might frustrate the intentions of the Obama administration, but not the law as written and passed long before the Obama adminstration.
Fourth, (and I thank
http://www.canadafreepress.com/index.php/article/23919 for the following) the Supremacy Clause only applies to enumerated powers in which the Federal government is given exclusive jurisdiction. Alexander Hamilton made this very clear in the Federalist papers No 27 (last paragraph), 32 (next to last paragraph) and 33 (second paragraph). Furthermore, Hamilton stated (Federalist paper No 32, third paragraph) that even where the Constitution delegates power to the Federal government, the states retain a concurrent and coequal authority over the same matter unless the Constitution specifically prohibits the states from exercising that power.
Now Article I, Section 8, Clause 4 reads "The Congress shall have the Power … snip … To establish an uniform Rule of Naturalization". Madison (in Federalist paper No 42, fourth paragraph from the end) gives the reason for this clause, namely that the various states had their own rules for qualifying for citzenship. So all that Article I, Section 8, Clause 4 does is grant the Federal government the exclusive authority over what the
criteria are for citizenship. And the Arizona law is not in conflict with this in any way.
Furthermore, the Arizona law calls for illegal aliens that are caught to be turned over to the Federal government. Thus, again, the Arizona law is not in conflict with Federal law regarding what to do with them.
And those provisions in the Arizona law that address crimes committed by illegal aliens within the borders of Arizona (criminal trespass, human smuggling, obstructing traffic while picking up day laborers, harboring and concealing illegal aliens, and knowingly employing illegal aliens) fall within the authority of the state. Hamilton shows in Federalist Paper No 32 (third paragraph) that the Arizona government has exclusive jurisdiction over illegals that violate Arizona criminal law. The Federal government has no authority to intervene. The Supremacy Clause does not apply. And after the illegals have served their sentences for these ordinary crimes, the law calls for turning them over to the Federal government. Again there is no conflict with the Constitution or Federal law. Your argument is bogus.
Here is one more point that is made in the linked article. The US Constitution (Article I, Section 10, Last Clause) explicitly permits states to keep troops if they are "actually invaded". And Arizona may even "engage in War" under those circumstances. And by all accounts, an invasion is precisely what is happening in Arizona.
And finally, note that any attempt to argue supremacy is going to be met with the question why the Federal government hasn't made the same argument against equivalent language in the California law. The Federal government has clearly set a precedent by not doing so. So bring it on.
