It was always my understanding that even if the justices rule that a 7rd mag is un-constitutional a state can declare that it is constitutional within that state. If the justices rule that a 30rd mag is un-constitutional any state can declare that a 30rd mag IS contitutional within that state. The fed goverment does not always have sovereignty over it's states only in certain matters. It is "the will of the people" of that state that will determine what is constitutional and un-constitutional within their state.
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