The ABC/WashPost Poll consistently selects Dems at a 5% oversample, using fallacious methodology based on the 2008 voting and forgetting about the 2010 when the GOP had a 49-46% turnout:

901. Generally speaking, do you usually think of yourself as (a Democrat), (a Republican), an independent or what? Democrat Republican Independent Other (vol.) No opinion 11/4/12 LV 35 29 32 3 1