I'm as shocked as you are, but RedState's Erick Erickson is quite clear in his announcement:

Today I want to reaffirm and make it more definitive. If you think 9/11 was an inside job or you really want to debate whether or not Barack Obama is an American citizen eligible to be President, RedState is not a place for you.

Got that? RedState's banning birthers and anyone who wants to have a “debate” about Obama's birth certificate.

Cue Sarah Palin, last December:

"Would you make the birth certificate an issue if you ran?" she was asked (around 9 minutes into the video above).

“I think the public rightfully is still making it an issue. I don't have a problem with that. I don't know if I would have to bother to make it an issue, because I think that members of the electorate still want answers,” she replied.

“Do you think it's a fair question to be looking at?” Humphries persisted.

“I think it's a fair question, just like I think past association and past voting records -- all of that is fair game,” Palin said. “The McCain-Palin campaign didn't do a good enough job in that area.”

Uh-oh, Palin said the public was “rightfully” asking birther questions and that it was “fair game.”

Question: Will Erickson grant Palin dispensation?

UPDATED: Perhaps Erickson should compare notes with Andrew Breitbart on the pitfalls of RW birther hypocrisy.