No its not the legal framework in general. Its election law. That belongs to the legislature. Its spelled out in the elections clause of the US Constitution.
OK, that’s basically what I meant.
That belongs to the legislature.
The legislature writes the statutes but they don’t become law until they pass through the process defined by that state’s constitution. Which usually means a signature by the governor, and every law has to be in accordance with the state’s constitution.
I don’t think it’s reasonable that state legislatures could enact laws in direct contravention of their own constitutions.
I think when the framers said state legislatures they effectively meant state laws, which have to be consistent with state constitutions.