The polls in Iowa have really been bi-modal. And naturally, PPP sides with the colleges that have ridiculous Hillary leads.
32-41 point leads:
PPP
Monmouth University
Loras College
3-11 point leads:
CBS/YouGov
Quinnipiac
Des Moines Register/Bloomberg/Selzer (rated A+ by 538)
NBC/WSJ/Marist
Gravis Marketing/One America News
You left out the fact that the first three are also the most recent. All the others were conducted before Biden's announcement/the Benghazi hearing, and the last two were even from before the debate.
Except for Gravis, none of these polls had Biden. The first 3 I mentioned are post-debate and no Biden.
And no, opinion didn't magically shift tens of points in Hillary's favor because of Benghazi. And she didn't gain any from Biden not running from polls that didn't have Biden. The post Biden not running and Benghazi hearing national IBD/TIPP poll with Hillary up 48-33 is the closest it's ever been in a poll without Biden.
Why do you keep citing the IBD/TIPP poll? They are not some gold standard pollster, they are rated average by fivethirtyeight and have a history of terrible results.
If things are going so well for Hillary, then why did a poll just come out that is the closest margin ever without Biden? The other 2 of the last 3 polls aren't too bad for Bernie either.
NBC/SurveyMonkey 10/27 - 10/29 1,226 RV 50 30 1 1 - - - 12
IBD/TIPP 10/24 - 10/29 356 RV 48 33 2 - - - - -
Ipsos/Reuters 10/24 - 10/28 676 A 53 33
I didnt even bring up Hillary...
So your just gonna ignore my question?
What makes IBD/TIPP so special that you insist on citing them as a gold standard pollster when there at best average and at worst "Inept and Biased"?