When I lived in Texas many years ago, the law was that you had to re-register every 2-4 years. Not sure if that is still the case.
Traditionally, many thousands of Americans vote democrat after they are dead. Now they have millions of alive non-citizens voting illegally in U.S. elections making of the country another corrupt banana republic.
Probably re register on all birthdays ending in five and zero. That would make the process more manageable.