Why did hooker lose at the Battle of Chancellorsville?

Joseph Hooker did not lose at the Battle of Chancellorsville. In fact, he won a significant victory over Confederate General Robert E. Lee. The Union Army under Hooker's command successfully repelled Lee's attacks and forced him to retreat. The Battle of Chancellorsville is considered a turning point in the American Civil War, as it marked the beginning of the end for the Confederate Army.