You are off on the wrong foot here. It is not possible for Congress to modify or re-define ANY constitutional term by a subsequent action of Congress. To put it another way, Congress CANNOT change the meaning of words or terms written in the U.S. Constitution. It is beyond their power to make changes to our governing document.
The only thing they can do is initiate an Amendment process, and even that cannot be completed without the consent of 3/4ths of the state legislatures. To my knowledge, Article II has not been repealed by any subsequent Amendment, and therefore is still in force with the same meaning it possessed in 1787.
The constitution expressly says that the Congress only has the power to "naturalize." (Which means to make "like natural.") Congress cannot Make something natural. It must either BE natural, or it is not. Any citizenship status which REQUIRES an act by Congress is an artificial status. It is a created condition, not a natural one.
Hope that clears things up for you a bit.
I never said that Congress modified the meaning of a natural born citizen. The Congesional Research Service doe not make law, they do research. Their research indicates that the 14 th Amendment and cases before the Supreme Court indicate that the definition of NBC is born in the US. That is their opinion and the opinion of many others including Mark Levin. Your opinion may differ and that is your right. I disagree with you and that is my right. The only way to settle it would be a case to go to the Supreme Court and we all know even they can be wrong and would also surely be split in their opinions as are we.