Benjamin Butler

Benjamin Franklin Butler (November 5, 1818 – January 11, 1893) was a major general of the Union Army, politician, lawyer and businessman from Massachusetts. Born in New Hampshire and raised in Lowell, Massachusetts, Butler is best known as a political major general of the Union Army during the American Civil War, and for his leadership role in the impeachment of U.S. President Andrew Johnson. He was a colorful and often controversial figure on the national stage and in the Massachusetts political scene and ran several campaigns for Governor before his election to that office in 1882.
Early in the Civil War he joined the Union Army, where he was noted for his lack of military skill, and his controversial command of New Orleans, which brought him wide dislike in the South and the "Beast" epithet. He helped create the legal idea of effectively freeing fugitive slaves by designating them as contraband of war in service of military objectives, which led to a political groundswell in the North which included general emancipation and the end of slavery as official war goals. His commands were marred by financial and logistical dealings across enemy lines, some of which probably took place with his knowledge and to his financial benefit.
Butler was dismissed from the Union Army after his failures in the First Battle of Fort Fisher.
https://en.wikipedia.org/wiki/Benjamin_Butler