Quote from Wallet:
a Citizen of the United States, at the time of the Adoption of this Constitution
Unless a person was alive in 1787/88 when the constitution was ratified, this will not apply. Obviously those founding fathers were not natural born citizens, we ain't a country yet???????
Thus the insertion of that phrase, for everyone else - they must be Natural born, or were citizens when the constitution was written.
Not even going to get into the Obama debate, but your reading it WRONG.
1) Every time the constitution is amended, it could be flexibly argued 'this constitution is adopted'. That last happened in 92.
2) This isn't biblical interpretation. It is literal, and natural born citizen OR citizen is the language, not "only natural born" or "natural born and US citizen."
It is simple.
Now, if he is Kenyan born, then it is stickier... but the powers that be are happy to present a Hawaiian birth certificate and accept it.
Let's say he was a Kenyan born -
Birth Abroad to One Citizen and One Alien Parent in Wedlock: A child born abroad to one U.S. citizen parent and one alien parent acquires U.S. citizenship at birth under Section 301(g) INA provided the citizen parent was physically present in the U.S. for the time period required by the law applicable at the time of the child's birth. (For birth on or after November 14, 1986, a period of five years physical presence, two after the age of fourteen is required. For birth between December 24, 1952 and November 13, 1986, a period of ten years, five after the age of fourteen are required for physical presence in the U.S. to transmit U.S. citizenship to the child.
http://travel.state.gov/law/info/info_609.html
So one could argue that upon Obama's mother's 19th birthday her US citizenship would be transmitted formally to her child (even if born in Kenya). Since the constitution was last amended in 92, Obama would have been a US citizen at that time.
Show me where it is explicitly stated that Obama must be 'born' a US citizen? He is a US citizen effective when his mother has been a US citizen for 5 years after her 14th birthday (considering she was born a US citizen). Literally 3 months after his birth according to this law, Obama is a US citizen. When he obtained his first passport, the government acknowledged his citizenship.