George Brinton McClellan was an American soldier, civil engineer, railroad executive, and politician who served as the 24th Governor of New Jersey.
Explanation:
The Battle of Antietam was the single bloodiest day of combat in the Civil War, and while it was presented as a Union victory in the Northern press, it was in effect a tactical draw. Frustrated that McClellan had again failed to destroy Lee's army, Lincoln officially removed him from command in November 1862.
