My take is thus:
1) the poll is bogus, designed to keep republicans home on election day. (this is my vote)
2) democrats LIED, claiming they were republicans.
either way, we cannot trust polls from here on out. Remember Carter Regan. The polls showed neck and neck until election night when the landslide surprised everyone. The media knew the truth long before the election but refused to release the data. Its gonna be the same thing for this election.