[Renfrew]

“Interesting subject. The 10th amendment trumps federal law. But can that be a reasonable position to use it to overturn the 14th?”

The bigger problem is that the 10th doesn’t apply here. Section 8 of the Constitution mandates that Congress “establish a uniform Rule of Naturalization”.

It’s pretty hard to argue that individual states could adjust citizenship rules with Section 8 as written.

[Bloody Sam Roberts]

Good point. Section 8 would fall under a power "delegated to United States by the Constitution" as stated in the 10th.

Thought I'd nailed it but clearly misinterpreted.