In all of those Republican states, and in any others where it can be done, if they have not done so already, they should a) come up with strict voter ID laws, and b) limit or eliminate early voting. If not dealt with, these are areas ripe for Democrat vote fraud.
Also paper ballots, purple ink voters’ fingers to stop voting twice, locked boxes with audit trails, count ballots right at the local polling place.
ID is only one piece of the solution.
Need to ensure the COUNT is not fraudulent.