This is my only question...and I’m not trying to be contrarian.... I really just don’t understand this D+ stuff. Do they just call a whole bunch of random people and it so happens that they get 6% more democrats? Because in that case, yeah I’m worried because even if it doesn’t match up with the country’s registration numbers, it’s probably likely that people are just self-identifying as Dems because they’re going to vote that way. On the other hand, if they are purposefully weighting these polls to get D+ whatever... Then yeah its bull based on an assumption. Which it is, I don’t know.
They weight the poll based on what the assume the electorate looks like. See any evidence in your day to day life that Obama is generating the same support in 2012 he did in 2008? PEW pollsters think he is.