The debate over whether pollsters should statistically adjust (or weight) their samples by party identification has been heated during campaign 2004. Here is a list of sequence of posts that covered this topic exhaustively:
It is worth noting that the debate about weighting by party is really a part of a larger debate also raging in 2004 about how pollsters define likely voters – click this link for more information.
Finally, click on this link to display short excerpts of all of the posts concerning weighting by party in reverse chronological order (most recent first).
Mark Blumenthal is political pollster with deep and varied experience across survey research, campaigns, and media. The original "Mystery Pollster" and co-creator of Pollster.com, he explains complex concepts to a multitude of audiences and how data informs politics and decision-making. A researcher and consultant who crafts effective questions and identifies innovative solutions to deliver results. An award winning political journalist who brings insights and crafts compelling narratives from chaotic data.