There is no precedent for this. The executive lacks the authority. It would require Congress to enact a law, and this is easier said than done. The states run elections, and while the feds have some input on how elections for federal office are conducted, it is quite limited.
The vast majority of the population is relying on these protections holding.
> There is no precedent for this. The executive lacks the authority. It would require Congress to enact a law,
Does this actually matter in practice? It seems like the administration has done a bunch of things that normally requires Congress to do something, yet they were able to and I don't see anyone getting arrested. The executive have lacked the authority for lots of things, yet it doesn't seem to stop them.
I'm not saying you're wrong, in theory. But in practice it seems like those things aren't actually stopping anyone, at least not yet.
Unless the president declares a permanent temporary state of emergency for whatever reason that would prevent such elections.