God bless you and keep you from harm, this day and forever.
This fact has been widely know for decades. That's why polls are frequently accused of leading questions etc.
Pretending that this was every unknown is ludicrous. Polls are designed by cognitive psychiatrist to drive and shape opion -
not to "sample" it
that's why polls. entrance and exit should ne banned.
It is also why the ballot was secret, and a citizen's vote considered a private matter, not to be discussed with shills
the whole secret ballot idea was flushed when we adopted commercial standards of 'truth" (the standards of advertising) with all of advertising's expected associated deceptions
>Gallup has found that respondents can answer very differently to questions with the same topic even in the same survey based on the language that’s used