>>many states expend absolutely no effort to prevent non-citizens from voting in federal elections notwithstanding the federal statute that makes such a vote criminal.
That’s partly because the state officials are never charged as conspirators to that election fraud.
Indeed, at the first level, the R voters in R controlled states clearly need to insist R politicians fulfill their oaths of office.
At a higher level, the R members of the Legislative and Executive branches need to take steps to ensure federal statutes are enforced.
Law enforcement is at the core of our government. That, of course, is one of the reasons the Left strives to defund LE.