American History – The Third President of the United States American History – The Third President of the United States In order for the Republicans to restore the balance of power in the government agencies, Jefferson started what came to be known as "spoils system". In order to comply with public opinion, he tried to control the Supreme Court, but did not succeed. In the absence of the clear constitution rules, he negotiated and purchased the vest land of Louisiana. Lewis and the Clark Expedition was also initiated by Jefferson. After the United States became an independent country, he was responsible for the first war —to resistance Barbarians in Tripoli cost. Although Jefferson tried to avoid the second war, but only make the war between the United States and England postponed to 1812. Jefferson gradually succeeded in overcoming the serious threat faced by the United States for the first time after the establishment of the Confederation. Vice President Aaron Burr was accused of treason in an attempt to set up an independent government in the southwestern United States. This was halted when it had scarcely begun; but after the trial of Burr's treason, Jefferson's personal hostility toward Burr and toward chief justice Marshall did him little credit. Jefferson enacted the Embargo Act, intended to maintain peace, it was daring and innovative approach, but in the end did not succeed. This, however, may be one of the most successful and enlightening diplomatic moves in the United States, a young Republic, which has indeed put economic pressure on the United Kingdom and France who were at the Anglo-French battle. The embargo was a Jefferson's response to the British Orders in Council and the Impressment Acts , directed in neutral shipping (in the United States). The Embargo Act prohibited the United States from exporting goods and intended depriving European countries from acquiring some of the raw materials needed for the war.