Although, in 1800, Spain secretly surrendered and gave the territory back to France, Spain’s shadiness gave Americans fear. An American ambassador went to France to purchase the territory that was surrendered by Spain, France sold it for $15 million. This purchase added 828,000 square miles to the United States. Jefferson had always been aware of the trans-Mississippi River but in 1803, he secretly scheduled his personal secretary Meriwether Lewis and Kentuckian William Clark to check out the river. Congress did not have the same views as Jefferson they just wanted to keep the traditional relationship with Indians as before. Lewis and Clark expedition went well and brought back new