“You show me where the Constitution defines the term “Natural Born Citizen.” “
Since there are only two way to become citizens: natural born and naturalized, it is evident.
It is “evident” to you because you haven’t been paying attention to the issue.
The Constitution distinguishes between a “citizen” (which a Senator must be) and a “natural born citizen” which a President must be.
Chester A. Arthur was born a citizen, in the U.S., yet he destroyed documents and lied about the fact that his father was not a citizen at the time of his (Chester’s) birth. Clearly, Chester Arthur was of the view, and knew that the entire political world was of the view, that being born in the U.S. and a citizen from the moment of birth was NOT equivalent to being a “natural born citizen.”
How do you explain the fact that Chester Arthur and the political world in his time held to a different meaning of the term “natural born citizen” than you do?
There are two ways to become a citizen (birth and naturalization), but not just two kinds of citizen.
There are those who are citizens because born in the U.S., there are those who are "natural born citizens" because born of two citizen parents, and there are naturalized citizens.
Only a natural born citizen may be President. Therefore, Barry Soetoro is not President. The WH website says he was born a British Subject because his father was a British Subject.
Marco Rubio and Ted Cruz are not Natural Born Citzens. Therefore, if the Republic Party nominates either one for President, it will reveal itself to be as contemptuous of the Constitution and self-government as the Democrats.