Wolford v. Lopez · ¶32

If a challenged law falls within the plain text of the Second Amendment, it is presumptively unconstitutional, id., at 24—which means that it may violate the preexisting right that the Amendment codified. But because that right was not in every way coterminous with the Amendment’s literal language, further analysis may be needed. Specifically, the relevant government—federal, state, or local— may be able to show that its challenged law did not infringe the historical understanding of the codified right. See ibid.

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