In the last few posts of this series we've seen how some of the numbers for minorities in the PPP polls are unreliable. But their toplines are right in line with other polls this year, and, on average, very good in prior years compared to actual results. So how could this be? Well, obviously, if minority demographics are skewed towards Republicans, majority demographics must be skewed towards Democrats. And that is indeed the case, or at least it was for 2010, when comparing to exit polls:
