Answer:
According to Jefferson, the United States lacked the “power of holding foreign territory,” and thus a constitutional amendment “seems necessary” to acquire the region.
Step-by-step explanation:
Jefferson took a strict, literal view of constitutional powers, meaning that specific powers reserved for the President and Executive Branch needed to be spelled out in the Constitution. The ability to buy property from foreign governments was not among these powers listed the Constitution – a fact that his political opponents, the Federalists, were eager to point out to the President.