Obama's grandmother is his mother

And his mother is his sister. This was a discussion topic on a Christian Radio Station (I'm only posting this because of how funny it sounds):

The remarkable conspiracy theory that Madelyn Dunham was the true mother of Barack Obama, and that her daughter Ann colluded in a cover-up by pretending to be the one who gave birth. The theory is propounded by a studio guest, Joseph Farah; curiously, despite running WorldNetDaily (which the Crosstalk website describes, absurdly, as "the world's leading independent Internet news source"), this is the only outlet where Farah has chosen to discuss the conspiracy:

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