Pretty well established, actually.
Parents had not lived here continuously for the 5 years prior to her birth. And were not US citizens.
Challenges in 2008 to the eligibility of both Senators John McCain and Barack Obama to be President, and “ballot access” challenges to President Obama in 2012, have prompted numerous court decisions which appear to have validated the traditional, historical, and legal meaning of the term “natural born” citizen as one who is entitled to U.S. citizenship “by birth” or “at birth.” This would include those born “in” the United States and under its jurisdiction (i.e. “native” born), even those born to alien parents; those born abroad to U.S. citizen-parents; or those born in other situations meeting legal requirements for U.S. citizenship “at birth.” Such term, however, would not include a person who was not a U.S. citizen by birth or at birth, and who was thus born an “alien” required to go through the legal process of “naturalization” to become a U.S. citizen.