Nikki Haley walks back Civil War comments after backlash

Republican presidential candidate Nikki Haley is facing backlash after she was asked on Wednesday what caused the Civil War and failed to include slavery in her answer, instead saying the conflict was about state's rights. On Thursday, she attempted to walk back the comments, saying that slavery was an "unquestioned" aspect of the Civil War. Her words come just weeks before the first presidential primary. Christina Ruffini reports from Washington, D.C.