So simple even a cave man could figure it out.
BTW, I'm not calling you a cave man. ;*)
Not so fast. My dad was in the army and stationed in France when my brother was born; in a French hospital by the way. So my brother has a French birth certificate. When my brother turned 18 he had to go before a federal judge and declare citizenship, French or American. Even though my brother is a U.S. citizen technically he is not a NATURAL BORN citizen.
So maybe obama was born somewhere else and somehow got a Hawaii birth certificate though less than legal means, it’s possible.