It turns out that 33% of New Jersey Republicans say that Obama was not born in the United States, plus 19% in the Birther-Curious undecided category.
But Democrats shouldn't be too eager to laugh at this. On the other side of the political spectrum, there's some significant 9/11 Trutherism among Dem voters. We've got 32% of Jersey Democrats who say that George W. Bush had advance knowledge of the 9/11 attacks. In addition, another 19% of Jersey Dems are Truther-Curious, in the undecided column.
So that's only 48% of Jersey Republicans who definitively are not Birthers, and 49% of Dems who are officially not Truthers. Don't you just love our polarized politics?