of coordination and effectiveness in the invasion of Canada, and Harrison resigned from the army in May. After the war ended, Congress investigated Harrison's resignation and determined that Armstrong had mistreated him during his military campaign and that his resignation was justified. Congress awarded Harrison a gold medal for his services during the war. Harrison and Michigan Territory's Governor Lewis Cass were responsible for negotiating the peace treaty with the Indians. President Madison appointed Harrison in June 1815 to help in negotiating a second treaty with the Indians that became known as the Treaty of Springwells, in which the tribes ceded a large tract of land in the west, providing additional land for American purchase and settlement. Postwar life Ohio politician and diplomat Harrison resigned from the army in 1814, shortly before the conclusion of the War of 1812, and returned to his family and farm in North Bend, Ohio. Freehling claims that his expenses then well exceeded his means and he fell into debt, that Harrison chose "celebrity over duty", as he sought the adulation found at parties in New York, Washington, and Philadelphia, and that he became an office seeker. He was elected in 1816 to complete John McLean's term in the House of Representatives, representing Ohio's 1st congressional district until 1819. He attempted to secure the post as Secretary of War under President Monroe in 1817 but lost out to John C. Calhoun. He was also passed over for a diplomatic post to Russia. He was elected to the Ohio State Senate in 1819 and served until 1821, having lost the election for Ohio governor in 1820. He ran in the 1822 election for the United States House of Representatives, but lost to James W. Gazlay. He was elected to the U.S. Senate in 1824, and was an Ohio presidential elector in 1820 for James Monroe and for Henry Clay in 1824. Harrison was appointed in 1828 as minister plenipotentiary to Gran Colombia, so he resigned from Congress and served in his new post until March 8, 1829. He arrived in Bogotá on December 22, 1828, and found the condition of Colombia saddening. He reported to the Secretary of State that the country was on the edge of anarchy, and that Simón Bolívar was about to become a military dictator. He wrote a letter of polite rebuke to Bolívar, stating that "the strongest of all governments is