The phrase “natural born citizen” has been defined as a child born in the country to two citizen parents in numerous U.S. Supreme Court and lower court decisions:
)The Venus, 12U.S. 253(1814),
Shanks v. Dupont, 28 U.S. 242 (1830),
Scott v. Sandford, 60 U.S. 393 (1856),
Minor v. Happersett, 88 U.S. 162 (1875),
Ex parte Reynolds, 20 F. Cas. 582 (C.C.W.D. Ark 1879), United States v. Ward, 42 F. 320 (1890)
Wong Kim Ark, 169 U.S. 649 (1898)
Ludlam, Excutrix, & c., v. Ludlam, 26 N.Y. 356 (1863) and more)
and the framers of the Civil Rights Act of 1866, the 14th Amendment, the Naturalization Act of 1795, 1798, 1802, 1885, and our modern 8 U.S.C. Sec. 1401.
http://www.barackobama.com/fightthesmears/articles/5/birthcertificate.html
When Barack Obama Jr. was born on Aug. 4,1961, in Honolulu, Kenya was a British colony, still part of the
United Kingdoms dwindling empire. As a Kenyan native, Barack Obama Sr. was a British subject whose citizenship
status was governed by The British Nationality Act of 1948. That same act governed the status of Obama Sr.s children.
Since Sen. Obama has neither renounced his U.S. citizenship nor sworn an oath of allegiance to Kenya, his Kenyan
citizenship automatically expired on Aug. 4,1982.
Therefore, we can say with confidence that a natural-born
citizen of the United States means those persons born whose
father the United States already has an established
jurisdiction over, i.e., born to fathers who are
themselves citizens of the United States.
4th. None can claim citizenship as a birth-right, but such as have been born since the declaration of independence, for this obvious reason: no man can be born a citizen of a state or government, which did not exist at the time of his birth. Citizenship is the inheritance of the children of those who have taken a part in the late revolution; but this is confined exclusively to the children of those who were themselves citizens. Those who died before the revolution, could leave no political character to their children, but that of subjects, which they themselves possessed. If they had lived, no one could be certain whether they would have adhered to the king or to congress. Their children, therefore, may claim by inheritance the rights of British subjects, but not of American citizens. —David Ramsay, Founder, 1789.