If you're like most Americans, you don't live around or socialize with people with whom you disagree with politically. This self-sorting by political ideology is why so many people were shocked Donald Trump won last November ("But I don't know anyone who voted for him") while half(ish) of the country knew it was happening all along.


원문출처 : http://www.cnn.com/2017/04/10/politics/map-2016-election-red-state-blue-state/index.html