Party ID: The Case for Weights and Historical Margins (Current polls all oversampling Dems)

~snipped~ Though it's controversial, I believe that weighting for party ID is appropriate if done in a manner consistent with historical norms. I fall into the camp that believes party ID is far more static - that voters can change their preferences and the intensity of their partisanship often, but do not as frequently take the step of giving themselves a new party with which to identify. To me, party ID falls somewhere in between "demographic fact" and "variable question response". Preventing wildly fluctuating data outside historical norms provides a better picture of what real movement is occurring in the...

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