On Friday, June 13, 2014 6:29:12 AM UTC-7, D. Peter Maus wrote:

Yes, the US Constitution. And the Federalist Papers.
What do the Federalist Papers opine about the qualifications to be President? Was there unanimous agreement, or was this another controversial issue?

AFAIK, the US Constitution says "natural born citizne", and the US Supreme Court has not yet spoken ex cathedra on clarifying the definition.