In his own autobiography (ghost written by Bill Ayres), bh0 admits that in college he sought out the communist, socialist and leftist groups to associate with. And Paul Kengor’s book “The Communist: Frank Marshall Davis - The Untold Story of Barack Obama’s Mentor” shows the role of this admitted communist in bh0’s life and also the communist allegiances of his grandparents; and of course he own Kenyan born father was a communist.
Frank Marshall Davis is more likely to be Obama’s father than the Kenyan. The whole cover-up on the birth certificate would be to cover-up that possibility.