If I were President I wouldn't want "most" people talking about whether I was born in the US. I long ago would have simply provided the necessary information. Had he done that there would be 5 weirdos trying to make a story about nothing instead of a huge chunk of people with questions.
He did provide the necessary information. He produced Hawaii's functional equevelent of a Birth Certificate. It was certified by the State that he was born in the state on a specific date at a specific time. According to the secretary of state he can do no more.
The president knows that a certian percent will never belive that he was born in the USA no matter how much evidence is produced. Ironicaly the percent who do not belive he was born in th eUSA is abou tthe same as beliveve Bush was a good president or that Evolution did not occure. You cant play the game with people who do not consider evidence when choosing what to belive.
It seems to me this issue is working ofr him at the present time.