You are right that he slanted the question so as to force the ambassador into the affirmative.
However, if you’ll notice he used the same strategy on two different occasions and the ambassador gently brushed him off.
First, he tried to force the ambassador to sing the Kenyan national anthem. The ambassador referred him to the kenyan website.
Second he tried to push the ambassador into saying something about maybe Kenya becoming the 51st state. Again the ambassador said that Kenya was a sovereign country. ie No.
He used the same technique on the question of Obama’s birth place. This time the ambassador said yes.
Exactly, if that really was the Ambassador, then he’s not a complete idiot, although in that part of the world many of them would be, but not the ones they send here. He knew he was being kidded about the 51st state and the national anthem, but may not have realized about our “natural born citizen” requirement, and had no problem saying that everyone knows the President Elect was born in Kenya. (Note there was no possible confusion with BHO Sr, since the DJs specifically said “The President Elect” or “President Elect Obama”.