On the Democratic side:
Sanders 51% (+15)
Clinton 43% (-11)
O'Malley 4% (+0)
Someone else <1% (-2)
None 1% (+<1%)
No Opinion 1% (-2)
Sorry but unless Hillary was caught eating a live baby on national TV there is no way to justify such a swing. Even Obama after his Iowa win didn't post such numbers.
Sorry lyndon but it is plausible. In an election where the voters are going toward anti establishment candidates Clinton is being shown as corrupt and dishonest. I've been saying for months that this race will tighten and it has. Anyone who doubts that is a hack and doesn't believe in polling.
I'd have to say I agree. If Clinton doesn't win IA or NH she's finished.