"My guess is that [birtherism] has little to do with actual thought, and everything to do with tribal identification—rejecting Obama as a citizen is another way of rejecting his legitimacy as president." - Jamelle Bouie
It doesn’t matter how many facts you throw at the majority of these people. Birthers will still fester underneath reality.
[Poll: Adam J. Berinsky, Professor of Political Science at MIT; 1,000 respondents]