More specifically, Article II, Section 1 specifies who can run for President: "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." It limits eligibility to natural-born citizens. Amendment XIV, Section 1 makes clear the definition of "citizen:" "All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside. No State shall make or enforce any law which shall abridge the privileges or immunities of citizens of the United States; nor shall any State deprive any person of life, liberty, or property, without due process of law; nor deny to any person within its jurisdiction the equal protection of the laws." Seriously, the Constitution is a document that is VERY easy to understand. Its language isn't that dated, and it was written with clarity IN MIND. There's no reason that ANY American leaves junior high school without at least a basic knowledge of the document. I still have my pocket Constitution from junior high, but I've also found online versions of the "Charters of Freedom", the Constitution and the Declaration of Independence. I encourage anyone with the time and interest to read through AT LEAST the Constitution and its amendments.