Personally, whenever I am called for a poll and let the call go any further than hanging up right away, I tend to not tell the full truth. Possibly some of that goes on, on a large scale.
I used to be called years ago by pollsters from local elections, but since I switched from AT&T and we are not in the phone book anymore I don’t get no calls anymore. Besides I have audio caller ID and if I don’t recognize a number I do not answer it. The same for my smart phone, I have a specific ringtone for numbers that I don’t recognize
Always, always ALWAYS lie to the pollsters!