[iak8god]

ActBlue and WinRed are now used by Democrats and Republicans respectively for fundraising at just about every level, even pretty local races, and they're clearly selling access to their lists.

I donated a small amount to a Democratic candidate for a legislature race in my state (via ActBlue) and spent the next year unsubscribing from mailing lists that sending me hyperbolic nonsense about national races.

I donated a small amount to a Republican presidential primary candidate (via WinRed) and got signed up for campaign spam from Republicans running tight races all over the country, as well as like fifteen subscriptions to different mailing lists run by https://en.wikipedia.org/wiki/The_Epoch_Times.

[itsdrewmiller]

ActBlue doesn't sell data, but they do pass your email and phone number to the people you are donating to - they are the ones who are likely selling it.