This scar would be for him to look as an example of British oppression and used it as his fuel for life. After studying law and becoming a member of the Bar in North Carolina later he moved to Nashville Tennessee. There he became a member of a powerful political faction led by William Blount. He was married in 1791 to Rachel Donelson Robards, and later remarried to him due to a legal mistake in her prior divorce in 1794.This would come to haunt Jackson. He would later be called an adulterer. Jackson served as delegate to Tennessee in the 1796 Constitutional convention and a congressman for a year (from 1796-97). He was elected senator in 1797, but financial problems forced him to resign and return to Tennessee in less than a year. Later he served as a Tennessee superior court judge for six years starting in 1798. In 1804 he retired from the bench and moved to Nashville and devoted time to business ventures and his plantation. .
At this time his political career looked over. In 1814 Jackson was a Major General in the Tennessee Militia, here he was ordered to march against the Creek Indians (who were pro-British in the war of 1812). His goal was achieved at Horseshoe Bend in March of 1814. Eventually he forced All Indians from the area. His victory's impressed some people in Washington and Jackson was put in command of the defense of New Orleans. While in New Orleans he surprised many people. He put the city under martial rule. He did this so he would have control and so that he could set up for the British attack. Many natives to New Orleans thought that he was an uncouth gentleman and that he was rough and tumble man from the country. At a dinner party he surprised many ladies by being very gentleman like. This showed that he was a very diverse person. This show of American strength made Americans feel proud after a war filled with military defeats. Jackson was given the nickname "Old Hickory", and was treated as a national hero.