Hillary Clinton
In reply to the discussion: Why did Hillary lose Michigan? [View all]Her Sister
(6,444 posts)Many reasons given...
http://fivethirtyeight.com/features/why-the-polls-missed-bernie-sanders-michigan-upset/
"If Bernie Sanders were to defeat Hillary Clinton in Michigans Democratic primary, it would be among the greatest polling errors in primary history, our editor in chief, Nate Silver, wrote Tuesday evening when results started to come in. Sanders pulled it off, and now were left wondering how it happened. How did Sanders win by 1.5 percentage points when our polling average showed Clinton ahead by 21 points and our forecasts showed that Sanders had less than a 1 percent chance of winning?
With a polling miss this big, no single factor is likely to explain it, so more than one answer could be correct. Also, not every pollster releases detailed data, and it may take some time to fully diagnose what went wrong. Its a little bit of everything, Monmouth University pollster Patrick Murray told The Huffington Post.
Here is our initial assessment of some possible explanations, along with comments from some of the pollsters who had reported a big Clinton lead:...."