GUANGZHOU, CHINA - NOVEMBER 04:  Mark Okoth Obama Ndesandjo, the half-brother of U.S. President Barack Obama, speaks to the media during the press conference for the 'pre-launch' of his novel 'Nairobi to Shenzhen' hosted by the American Chamber of Commerce in South China at China Hotel on November 4, 2009 in Guangzhou, Guangdong Province of China. Ndesandjo revealed at the launch of his novel that his father (and President Obama's) had been abusive and said that fifteen percent of the book's proceeds would be contributed to disadvantaged children in China and around the world. Getty Images logo Getty Images 1 month ago

GUANGZHOU, CHINA - NOVEMBER 04: Mark Okoth Obama Ndesandjo, the half-brother of U.S. President Barack Obama, speaks to the media during the press conference for the 'pre-launch' of his novel 'Nairobi to Shenzhen' hosted by the American Chamber of Commerce in South China at China Hotel on November 4, 2009 in Guangzhou, Guangdong Province of China. Ndesandjo revealed at the launch of his novel that his father (and President Obama's) had been abusive and said that fifteen percent of the book's proceeds would be contributed to disadvantaged children in China and around the world.