From another thread ... Here's what I heard, "All polls are wrong."  Which means to me that all polls are imperfect samplings of a larger population. Some achieve a 'best in class' by virtue of transparency and accuracy/reliability.  There is a letter-graded report card on public polling outfits at the Ogre's Cave. It is useful in kind of indicating things like 'house effects' ... a statistical bias for one party over another in a given House of pollster, if that kind of systematic analys