President Obama in Hawaii for the Holidays

Everyone seems to be focusing on Christmas this year, as now President Obama is taking his holiday vacation in Hawaii with his family. As most know, there has been a growing concern as to where President Obama was born. If he was a citizen of another country that doesn't recognize 'dual citizenzhip', then how can he be a citizen of the United States?  Of course, citizenship in any other country has yet to be proven, although there are lots of theories. If in fact that it was proven that he was actually a citizen on another country, President Obama would have to step down as President of the United States. People who dislike the president are working hard at trying to prove such a theory, but so far, all they have are rumors. Solid, rock hard evidence has yet to be uncovered that would hold up in a Supreme Court.