I got called several times about a year ago by different people but I was always in the car and they'd never call back. I finally got to do a poll but I wasn't able to find the poll on 538 afterwards. It was very clearly sponsored by the Sander's campaign and I was honestly thrilled to participate. It was a high quality poll but it may have been an internal that wasn't released.
I've also somehow ended up on a GOP mailing list so I've gotten ridiculous questionnaires from Newt Gingrich, Mike Pence, the RNC and maybe a few others so far. I'll usually spam those as long as they don't make me pay for postage. Note: I imagine democrats have some crazy mailers too but I haven't received any.