In this Oct. 27, 2009, photo Mark Ndesandjo, one of President Barack Obama's half-siblings, receives an interview from The Associated Press in Gua

In this Oct. 27, 2009, photo Mark Ndesandjo, one of President Barack Obama's half-siblings, receives an interview from The Associated Press in Guangzhou, southern China. Ndesandjo has penned a semi-autobiographical novel describing a physically abusive father patterned on Barack Obama Sr., the half-brothers' late father. The novel, which goes on sale Wednesday by the self-publishing company Aventine Press, is one of several books in the works by relatives of the president. (AP Photo/Vincent Yu)

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