His dad was NOT an American....end of story.
“His dad was NOT an American....end of story.”
Mom was. You point?
Only one parent has to be a citizen in order for a child to be a citizen. Nobody argues that a child born within the nation’s boundaries to a mother who is a citizen would NOT be natural-born.
Further, Supreme Court precedent says that any child born in this country is a “natural-born citizen”, even if neither parent is a citizen, and even if both parents are here illegally. We can argue whether that is correct or not, but that is how the judiciary interprets the question now.