Answer:
Fought in the war of 1812.
Step-by-step explanation:
Andrew Jackson was considered as a champion of the "common man" because he fought the war of 1812. He was the first president who comes from a poor family instead from a wealthy background. He fought in the American Revolution in the year 1812 and he was a commander during the battle of New Orleans in 1812 so that's why people considered him a champion of the common man.