1. Unless and until Obama submits to unbiased DNA testing we will never know who the actual father was. The VERY best BET at this time is Frank Marshall Davis,...but without definitive proof we're all just guessing.
2. If Marshall was his real father then he is a Natural Born Citizen under anyone's interpretation of any statute.
3. If he actually is a Natural Born citizen then he was and is eligible to be POTUS
4. The question then becomes did this marxist fraud claim that he was a 'foreign' student to gain admission to U.S. colleges and to receive preferential treatment, grants, and tuition plus room and board allowances he WAS NOT ENTITLED TO!??????? I have no idea on the statute of limitations on fraud and mail fraud.
5. If he was the actual son of Barack Obama Senior then he his NOT eligible to be POTUS under any scenario. Period.
Well, other than the crimes he committed in perpetrating this massive hoax in order to get elected.