I donated to Bernie Sanders' primary campaign and STILL get this shit. Their system is any candidate donations get reported to the party, and the party will disseminate your number to pollsters. Pollsters only get a few numbers to reach out to each day , and have no access so that it's impossible to just get your name of the central list which the Democratic party owns. I called these guys and spoke to them, no results. I started responding with a message telling them each text results in a Republican donation and they slowed down a lot. Only have a few from the past month. But also this is why I'm just never donating to any Democrat campaigns since Bernie's presidential bid and cannot bring myself to do so because of the torrents of spam it results in.