This won't be a good poll for Sanders tomorrow even though it'll probably show another big swing towards him. Monmouth had Clinton up by 41% (!!!) in October and by 22% in December.
On top of that, PPP will be having new Iowa Dem numbers Friday, which is probably bad news for Sanders.
Are you just assuming that since it's PPP or have you heard something?
Dem house effect for Hillary. They're vigorously humping each other.
I'm going to guess that PPP has it close so that they don't lose all credibility, but they'll have their candidate Hillary still leading.