Pollsters were right on the money regarding Clinton's performance in Wisconsin. To their immense discredit, however, they seriously underestimated Trump's potential for a win. And in just about every state, they seem incapable of gauging support for 3rd-party candidates.
Source: Real Clear Politics
Total votes in Presidential elections:
- 2,983,417 (2008)
- 3,068,434 (2012)
- 2,929,099 (2016, preliminary)