I got the info here at FR. So you are saying that Hussein had to pass a security clearance prior to becoming president?
All presidents have limitations on what they can view. One of the requirements for a president, just like a person with a security clearance, is the “need to know.” So his clearance is still based upon the same information that a person who has been investigated. Without a need to know, he cannot view certain information. So his background check is given, but controlled.
Obama is a perfect example of the failure of the system to disqualify a person running for president for security reasons. He was a great friend of Bill Ayers, a known and un-repented terrorist. He can be elected president but he could not be hired by the FBI or be his own body guard as part of the CIA. This is why the president’s position comes with a security protocol.
But he can, without the approval from congress, drop all the clearance requirements for everyone thus making all documents view-able by everyone.