Obama's Candidacy in Jeopardy?

I remain intrigued by the investigation into Barack Obama's background and birth certificate. There appears to be a valid concern about whether he is a natural-born citizen or a naturalized citizen.

The latest assertion is that Obama's mother Stanley did not meet the legal criterion for the length of time she resided in the U.S. prior to his birth. Reportedly, Stanley had to reside for at least ten years in the U.S., five of which had to occur after the age of 16. Since Stanley was only 18 when Obama was born, she couldn't have lived in the U.S. for five years after the age of 16.

I personally don't know what to think but, if true, I expect an upheaval at the Democrat National Convention. Much more at the link.