[JediJones]

Morris wrote an article explaining why he doesn’t trust the polls. It has nothing to do with “sampling.” He explained how every poll has a sample skewed different ways, but the pollsters always adjust numbers based on a turnout model, predicting which groups will turn out in what proportion. And he says the 2008 model is the one the polls are using, which he thinks is wrong.

[muawiyah]

Whenever an adjustment is made to any poll that's been based on random sampling of the population, or segment of the population, it's no longer reflective of the current state of that population or segment.

The second the database behind a preference poll is adjusted, it no longer has enough validity to bother with.