From articles I found, she apparently lied on the application when she was asked if she was born a woman, then later admitted she filled in the answer to being born a woman as a lie.
There seems to be a petition to get her back in, but I think after the media attention this has brought, it might tarnish the results a bit, even if she doesn't win.
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http://dl.glitter-graphics.net/pub/256/256671ex078gxgzf.gif