The Louisiana Purchase was a land purchase made by United States president Thomas Jefferson in 1803. ... Thomas Jefferson approved the deal and used his constitutional power to sign treaties to buy the land. Napoleon Bonaparte sold the land because he needed money for the Great French War.
Jefferson made the Louisiana Purchase because after Napoleon sold the land, he realized there would be no other deal like this. This also made some people question if he had the power to do that because it doesn’t say it in the Constitution.
