Tuesday, January 19, 2016

Is Sanders Up By 27 in New Hampshire? Probably Not

Today saw the release of a new CNN poll in New Hampshire, showing Bernie Sanders beating Hillary Clinton 60-33. The poll is certainly good news for Sanders, but as is expected it has received far too much attention from the media and from Sanders supporters.

This is just one poll. Today also saw the release of an ARG poll[1] showing Sanders leading by just 6 points in New Hampshire. Although ARG is a less reputable polling firm,[2] the lack of attention on the ARG poll underscores the extent to which so many Sanders supporters want to believe the most optimistic news possible about their candidate.

Sanders is at the moment probably winning in New Hampshire. But he probably isn’t winning by 27 points. Since January 1, there have been 7 polls released for the Democratic primary in New Hampshire. I list the margins between Sanders and Clinton below, with all data coming from Huffpost Pollster.[3]


PPP            Ending 1/6: Clinton +3
NBC/WSJ  Ending 1/7: Sanders +4
Fox             Ending 1/7: Sanders +13
Monmouth Ending 1/10: Sanders +14
ARG           Ending 1/10: Sanders +3
CNN           Ending 1/18: Sanders +27
ARG           Ending 1/18: Sanders +6

At this point, it seems unlikely that Clinton is leading in New Hampshire, given that she has led in just 1 out of the last 7 polls, and that one time was a small lead of only 3 points. But we simply don’t know whether Sanders is leading in the mid single digits, as some polls suggest, in the teens, as others point to, or in a blow-out 27 point lead as per the CNN poll. Caution is in order. Until subsequent polls also have Sanders winning by 27 points, it is best to assume that the actual margin is somewhere between an essentially tied race and a gargantuan 27 point lead.




                                                                 



[1] http://americanresearchgroup.com/pres2016/primary/dem/nhdem.html
[2] http://fivethirtyeight.com/interactives/pollster-ratings/
[3] http://elections.huffingtonpost.com/pollster/2016-new-hampshire-presidential-democratic-primary

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