Polling 'Failures' Predicted for 2016 US Election

As the U.S. presidential election cycle goes into high gear, and polls become a constant staple of media coverage, experts say it has become harder to gauge who will win the race. They point to past pre-election surveys that did not accurately predict the outcome.   They note that Mitt Romney beat Barack Obama in several polls just before the November 2012 election. Once the votes were counted, Obama emerged the winner by a substantial margin. Several surveys also missed the strength...

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