Andrew Jackson was popular for many reasons, with the main one being that he was an admired general during the War of 1812. During the war, Jackson defeated the British at the Battle of New Orleans.
After winning the fierce battle, many Americans considered Jackson a war hero. Jackson also gained popularity by promising to clear out the corruption that was taking place within the U.S. government if the people were to elect him. The president was a charismatic man who took action, and the people strongly believed that the country needed such a man to propel the government in the right direction.