Obama's first priority was the 06-09 financial meltdown. After that Obamacare. Then Congress was won back by the Rethugs and he had no power to write off debt. Clinton tried to write off $70B African debt and Rethugs in Congress refused.
Don't view Obama from the tribal-nepotist African perspective that sees huge budget diverted to Kiambu or Nyeri where PORK hails from.
The biggest gift a US or foreigners can give Africa is huge infrastructure (Chinese) and taming corruption and dictatorship. The biggest Obama mess was the murder of Gaddafi and the subsequent Libyan mayhem. We're glad Egypt survived the Brotherhood nonsense after the Mursi tragedy.
Obama mostly failed his family. His sister was deported as an illegal immigrant
while his aunt died somewhere in the NY ghettos of treatable ailment. Too poor to afford even Obamacare. Well, with family he could still help.
As for Kenya or Africa, Obama and any westerner is welcome to assist with the war against corruption. He no longer has any power beyond lobby.