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STORY: U.S. President Barack Obama arrived in Senegal at the start of an eight-day trip to Africa that is aimed at reviving U.S. engagement with the continent but that will be overshadowed by the uncertain health of South Africa hero Nelson Mandela.
Obama's trip, his second to the continent as president, will take him to Senegal, South Africa and Tanzania. While the president hopes to spotlight trade and economic development themes, his visit would be dwarfed if Mandela's condition takes a turn for the worse.
The 94-year old former South African president remained hospitalized in critical condition after being admitted more than two weeks ago with a lung infection, the government said on Tuesday.
Air Force One carried Obama, his wife Michelle, their daughters Sasha and Malia, as well as the first lady's mother, Marian Robinson, and an Obama niece, Leslie Robinson.
Africans feel a special bond with Obama, the first African
