Absent a valid state-issued ID, how do you positively verify the claim that the person at the poll is indeed the person on the voter registration roll?
We could use a signature like we have for hundreds of years
I have an idea.
If people join your party, then your party has to pay for all the costs and programs to provide education and services to these members.
This would give incentive to parties to have "sustainable" cost-effective policies that can cover the needs of their populations they represent.
If you solicit criminals, you deal with them. If you provide "CYA" for corporate crooks, you manage plans for restitution for any crimes or violations they commit.
Whether you favor pro-choice, right to life or right to health care, you pay for those policies.
Whoever you accept into your party membership, you deal with them and manage them automatically, regardless how they vote.
Churches have been doing this for years. Running their own programs their members support and pay for THEMSELVES. Why not run political parties the same way?