The refusal to pursue the enemy at the close of the Antietam battle and it was the last straw for Lincoln, and he removed McClellan from power, McClellan was replaced by General Burnside as the new commander.
The refusal to pursue the enemy at the close of the Antietam battle and for weeks afterwards, was the last straw for Lincoln, and he removed McClellan from power. Ultimately, McClellan was replaced by General Burnside as the new commander of the Army of the Potomac.
