Here is Article II, Section 1, Clause 5 of the Constitution of the United States:
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.
Does this "fourteen years" phrase mean that someone who has recently spent some years stationed abroad as an ambassador of the United States cannot become president? Or are such persons considered to be maintaining a permanent residence in the U.S. while having a temporary secondary residence abroad? Was such a theory as the latter considered to justify Thomas Jefferson's eligibility?