The average poll respondent is older, whiter, and more conservative than the average voter. So you end up with a skewed sample.
Any reputable polling group will adjust for that. Granted, fewer and fewer people are answering their phones and taking these polls, but basic demographics are a well-known and pretty easy to adjust for thing. Most polls take a lot of that information for that reason
Any reputable polling group will adjust for that. Granted, fewer and fewer people are answering their phones and taking these polls, but basic demographics are a well-known and pretty easy to adjust for thing. Most polls take a lot of that information for that reason