His father was not a US citizen ever.
His mother didn't live the US long enough prior to giving birth, if outside the country, to qualify her child for citizenship automatically.
The image of his Certificate of Birth on his Web site is a proven forgery.
There are a lot of unanswered questions here.
Since when did it matter how long Mommy or Daddy lived in the US for a child to be “Natural Born?” We have numerous court decisions affirming the “anchor baby” concept.
If Mommy’s here long enough to squat and splat, the baby’s a US citizen.