Being a Servant means you help one person or family in particular which is better than a slave who gets abused and bossed by anyone.
Answer:
Attempting to fire the Secretary of War, Edwin Stanton.
Explanation:
As Johnson and Stanton collided about some south states that were still using black people as slaves, Johnson tried to remove him as secretary, ignoring both the congress and a law that was passed to prevent Stanton to being fired. He impeached the president but, when Johnson was jugded acquitted of any wrongdoing, Stanton voluntarily resigned.