2008 Presidential poll. Obama tied in Pennsylvanis and leads by 3 points in Wisconsin. A Muhlenberg poll released shortly before the 2008 election showed Obama and McCain tied. A PPP poll released at the same time show Obama leading McCain by a mere three points in Wisconsin.
These are not far fetched polls. This would have been results of these polls if the current sampling groups had been used. Note this is how the current sampling groups ACTUALLY voted in 2008. Of course these groups were heavily Republican loaded and the actual vote was an 11 point victory in Pennsylvania and a 13 point victory in Wisconsin. If we apply the actual error factor from these polls and correct the current polls for that error it shows that Sestak would win by about 5 points and Feingold would eek out a 2 point win.
I still believe that these polls are being skewed for some reason to the Republican side and I think it is because nobody wants to contradict the current narrative.