The reason there is NO CONTROLLING COURT DECISION regarding this issue is that it has never been before a court. This is not surprising because it would obviously be rare that some major party would attempt to run a candidate who is obviously not eligible. Times have changed I guess. Federal statutes are NOT CONTROLLING here. The Constitution is controlling. All that matters is this... What did natural born mean when the Framers wrote it into the Constitution? This is ALL that matters.
The framers were, alas, silent on that question.
While true that the Founders/Framers were silent on the meaning of the term natural born citizen, Alexander Hamilton in 1795 said to determine the meaning of terms in the Constitution look to English Law.