How One 19-Year-Old Illinois Man Is Distorting National Polling Averages
Nate Silver at 538 talks about the whole dissecting polls deal, or "unskewing" them.  All polls must make methodological choices, and all of those choices have advantages and disadvantages.  Spending a lot of time trying to dissect those choices and passing judgment on them is not as productive as:1.  Looking at aggregates of lots of polls.2.  Looking at the variance that a poll captures from one iteration of it to another.Or at least, so he claims.  Obviously, he runs a poll aggregator, using a model that heavily weights the trendline of individual polls, so he has a dog in this fight.