In the two counties in which I have worked in Cal, they don't have the capability to check the registration beyond what is there at the polls. The registrar's office is so swamped on electiuon day, they can't take time to look up the regirtrstaions. If they did, they'd have to add significant numbers of staff.
Some day this will all be on the net and people will wonder, why we were so backward.
There are real differences between rural areas and urban areas, purple.
The book are right on the tables where we go to vote. No need for a phone call!
See, we are usually known by our local “commisioner”, and he/she is known by us. And, there is no way we can mess around by cross-registering. Word would be out so fast in our local “squat and gobble” restaurants, and we know it. So, we all play by the rules here.
We also respect our idiot neighbors, when they choose to vote in a way we think “beyond stupid”, for we know full well that they might be the one to haul us out of a bad snow drift/ditch accident the next day.
Life is wonderful in rural areas. We do not all agree, but we all look out for one another. And, we all know each others’ troubles and indiscretions. It really does make life easier in the long run.