How come polls were so off? It seems like no one suggested a PS majority was even remotely feasible yet they got one. Also wonder how BE and CDU now feel as their decision to vote against budget backfired massively. Lost a lot of ground and now zero influence on government. Also must have been massive disappointment for PSD as even though they were not favoured to win, I think most thought they would make a lot more headway than they did.
It does seem though those further left probably had many break late towards PS simply to prevent a PSD government is my guess.
Reserve shy Tory
Is there any reason to think that there might have been a "reverse shy Tory" effect here, in the sense of people voting PS but not being prepared to admit to this to pollsters?
The polls do show that there was a PS wobble followed by a swing back to them; could part of the error simply be that the swing back continued after the last polls were taken?