[itsahoot]

And the specifics of this law need to be affirmed by the SCOTUS, to make it clear to subordinate federal judges that this is outside of their jurisdiction, no matter how much they crave to interfere.

You know the Supreme Court ruled that Voter ID was legal and since then Federal Judges have ruled Voter ID was illegal in, I think 4 states.

[yefragetuwrabrumuy]

There is a lot of behind the scenes in the judiciary. For example, based on the wording of their decision, a SCOTUS decision might apply to just that one case, or to just that one appellate court region, or to the entire US.

Federal judges, especially at the appellate level, both use and create Benchbooks, which provide an overview of legal procedure for a judge. At that level, while published by the court itself, it is heavily influenced by SCOTUS decisions.

In any event, typically there is a lot of wiggle room for judges, with two exceptions, when the SCOTUS makes it very clear that the issue, and closely related issues, are settled; or far less likely, when the senate and house judiciary committees put topics off limits to them, which they can constitutionally do, though seldom do.