Where do they get these stats? My kids when to the Erie rally last week, nobody inquired about their previous voting record.
It looks this is for “sign ups”. I’m not sure if everyone going to the rally signed up (ahead of time?). I’m pretty sure the number of people at these rallies was more than the number listed in “sign ups”.
Voter registration and voting records are public information.
Each campaign has a list generated from every state so when one signs up for a rally and gives their name, the campaign staff probably checks the state’s voter rolls and voting records to determine what party that person is registered with and when they last voted if ever.
One of the ways volunteers are helping in my state is going through who has voted early so that resources are used to target those who haven’t voted yet. It saves time and money to have that information.