As to the actual question of how to secure elections, the answer is complicated and nuanced, and I don't have all of the answers.
As a rule, I don't tend to favor "nationalization" of anything, which is why I would want to review the details before pledging "support" of such a thing. In general, I think local control - as local as possible right down to the individual where feasible - produces the best outcome.
But there are other solutions that haven't been tried at a national level, such as decertification of elections that aren't secure, or stripping representation from jurisdictions with incompatible laws.
