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Originally Posted by Mizzou B-ball fan
I assume that you find the assertions that somehow Democrats will magically appear in record percentages
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My guess is that the basis for the weights are not only democratic voters appearing, but republican voters disappearing.
I have not seen the demographic weights being used. But, one would presume that the pollsters are probably also factoring the lukewarm support McCain has among the Republican base. So, it seems that the weights are a combination of the expectation that democrats will turn out in support of Obama at higher than historical turnout levels, coupled with an expectation that base republican turnout will be somewhat depressed due to the theory that core voters are less than enamored with McCain as the republican party nominee.