This morning, an ABC/Washington Post poll came out indicating that Obama had opened up a 9 point lead. This seemed unlikely because most state polls are close and national polls show Obama with about a 3 point lead. Internals never lie. Thank Ed Morrisey of hotair.com for pointing this out
As some have already noted, the sampling in this poll could explain why. In the raw numbers, the poll sample consists of 38% Democrats and 28% Republicans. This doubles the actual spread on party affiliation, last surveyed by the more-reliable Rasmussen at 38.7%-33.6% D-to-R. When the WaPo/ABC poll takes leaners into account, the spread gets even more pronounced: 54-38. That suggests a rather strong bias towards Obama, and an almost insurmountable hurdle for McCain.