If you click on the link and read what's on that page, Mr. Obama doesn't qualify to be President of U.S.
So according to law in the Constitution's requirement in Article 2, § 1, clause 5; and accordingly to the Law of Nations, Mr. Obama will have to prove that he's a "natural born citizen". But accordingly to the letter to the Attorney General, his father was a british citizen and you need both parents to be U.S. citizen.
Just click on the link that says "Notice and Demand for action to secure a Writ of Quo Warranto" to read the letter.
Get the word out folks. He doesn't qualify to be President.