I have yet to understand how surveys compensate for most people ignoring unknown phone calls or texts. The ones who do answer are not representative of the total population.

I know some of people who were hit by scam surveys the last year, which are common too. Those scams scare some people away even from snail mail invites.

I think until these methods explained slowly, in small words, I am going to assume this is biased to older and more gullible , those who drift towards Trump.