Not exactly what this is about (Job or issue approval numbers aren't the same thing as voting preference), but the real important polling on Presidential voting preferences is the State-by-State numbers, not the national numbers, because of the way the Electoral College works. Obama winning, say, NY or IL by 70-30 is actually terrible for him if the national popular vote is close, because it means losing a lot of other States by 45-55. None of the talking heads seem to be mentioning this, partly because it is still relatively early, but I also suspect there is substantial data about it already available to Obama's hyper-funded re-election machine, and they don't want to talk about it.