The Louisiana Purchase was controversial because... . However, it was the foundation for the westward expansion of the United States. The purchase doubled the size of the country and ensured... . Drop box 1 possible answers: the land that the United States purchased was unfit for farming -- the US Constitution did not directly give the government the power to buy foreign territories -- it broke earlier agreements that the United States had made with the Native Americans

Drop box 2 possible answers: free access to the Mississippi River -- lasting peace between the United States and Great Britain -- that American Indians stayed away from the US settlements