IIRC, voter databases NGP VAN include phone numbers and emails. (IIRC, the big GOP one is called Voter Vault.) https://www.ngpvan.com/ https://www.ngpvan.com/

IIRC, voter databases NGP VAN include phone numbers and emails. (IIRC, the big GOP one is called Voter Vault.) https://www.ngpvan.com/ https://www.ngpvan.com/ Parties maintain these datasets and then selectively share with candidates. There's always misuse and abuse. My local (legislative district) party requires candidates sign a contract. We're one of the few (because we have geeks on the executive board). And even then, there's always some yahoo abusing the data. I'm not aware of the relationship(s) state & national parties have with their large fund raisers. I assume the abuse is rampant. Just like with every other outsourced fund raising operation. -- I've long been totally against voter profiling and ballot chasing. Harassing voters is another form of disenfranchisement (thru alienation). I've door belled, worked the phones, and done fund raising; voters HATE us. But every else is utterly opposed to the alternative system. Universal voter registration, compulsory voting, and massively curtail campaigning. In other words, be like every other mature democracy. But we couldn't possibly have that. Because Murica! or something. TLDR: Burn it all down. Upgrade to genuine democracy.