Why do polls vary from source to source?

Matt Bubala

Owner of Competitive Edge Research John Nienstedt

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Owner, Competitive Edge Research John Nienstedt explains why polling differs from source to source.

http://serve.castfire.com/audio/3195514/3195514_2016-11-05-041214.64kmono.mp3?ad_params=zones%3DPreroll%7Cstation_id%3D

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