"No Person except a natural born Citizen, or a Citizen of the United States, at the time of the Adoption of this Constitution, shall be eligible to the Office of President; neither shall any person be eligible to that Office who shall not have attained to the Age of thirty five Years, and been fourteen Years a Resident within the United States." -- And that's the law of the land. Please try to parse that until your head explodes.
Edit: I think I would add to that "Also, in your opinion does this mean that once you have been in the country for 14 years you are no longer eligible to be President?"