According to whom?? There's no evidence Obama was ever subjected to any background information, and even if it did, no such investigation would mean he couldn't have been born somewhere other than Hawaii. The alleged birth documents Obama has provided only showed up in 2008. No background investigation was based on any of these alleged documents since he didn't have them.
That post should say, “There’s no evidence Obama was ever subjected to any background INVESTIGATION ...”
Doesn’t the president get briefings on national security matters?
Did other presidents get ‘vetted’ for access to said information?
If 0 didn’t get cleared, it means he has totally bypassed the requirements for access to classified information!!