Why Did The Birthers Decline?

Andrew Sullivan —  May 13 2011 @ 7:01pm

Brendan Nyhan's guess:

First, the birth certificate's release was an unusually definitive debunking that became a major news event, so there was saturation coverage of some very strong corrective information. Second, no prominent elites on the right contested the validity of the birth certificate, which meant that coverage of its release was almost entirely one-sided. Finally, it's possible that support for the myth was soft because poll respondents didn't really believe it but were using poll questions about Obama's religion and place of birth as a way to express disapproval (as some commentators and pollsters have argued).