obama has never publically established that he meets the citizenship requirement to be POTUS as set forth in the US Constitution. This fact has generated a large amount of curiosity by individuals who have researched, analyzed, and brought lawsuits to clear up this issue. The outcome is uncertain at this time, but several lawsuits are pending at the POTUS which seek a solution. Stay tuned.
It is somewhat curious that he has spent a very large sum to fight something as simple as producing the necessary documentation. Some have reported that sum to be in the rather pricey neighborhood of $800,000, though I don’t know the correct amount. Why spend money you don’t have to spend?