Cruz seems to be getting data from more than just this. I've gotten several fundraising letters from Cruz's campaign and, so far, practically none from anyone else. I've never participated in any of these polls. I've assumed he's been mailing all registered Republicans.
In any event, it was immediately obvious that Barton-type people were involved in his campaign. The first fundraising letter I got from these guys was aimed at a target audience only interested only in Christian Nationalism and no other issues were mentioned.
I'm still trying to figure out WHY and HOW I'm getting spammed by Carson.