 He says it's not a new rule. You can't register to vote where you don't actually live. But this is the issue. Even those who find a spot at a homeless shelter may only be there a few months. Tricia Pasuth at First Presbyterian says that's why so many use the church's mail service, including for things like voting. It's not to cheat the system. In fact, it's people who are unhoused and they need a home base to receive their mail.