When I registered to vote, there was no internet. I'm not sure how I got on email lists, but there I am. I didn't even register as an Independent, because that's a party affiliation. I chose to have no party affiliation at all.
Yea, there wasn't internet when I registered either (back in the caveman days)

. Don't know how they get it. Perhaps via the DMV? In many states you can register to vote at the DMV when you renew your license. No escaping it is there? Big Brother will find us no matter what.
TIS