"..The Constitution sets out three eligibility requirements to be President: one must be 35 years of age, a resident “within the United States” for 14 years, and a “natural born Citizen.” There is no Supreme Court case which has ruled specifically on the presidential eligibility requirements (although several cases have addressed the term “natural born” citizen), and this clause has been the subject of several legal and historical treatises over the years, as well as more recent litigation.
The term “natural born” citizen is not defined in the Constitution, and there is no discussion of the term evident in the notes of the Federal Convention of 1787....
.....The weight of legal and historical authority indicates that the term “natural born” citizen would mean a person who is entitled to U.S. citizenship “by birth” or “at birth,” either by being born “in” the United States and under its jurisdiction, even those born to alien parents; by being born abroad to U.S. citizen-parents; or by being 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...
I can see that this point will be litigated, but probably Harris would meet the “natural born” citizen requirement.