Answer:
The US purchase of land from a foreign government
Explanation:
The Louisiana Purchase by the US from France was led by President Thomas Jefferson. It doubled the size of the US territory and avoided problems in ports with the French.
The problem was that Jefferson was very strict with following the Constitution, and it did list the ability to buy property as one of the constitutional power of the President and the Executive Branch.
Because of that Jefferson considered a Constitutional amendment that allowed that it was a very big discussion that could take time and make the US lose the deal.
So he made the deal and sent it to the Congress for ratification, and said that the President was the guardian of the US money and he purchased the territory to protect the country.
