Nikki Haley didn’t mention slavery as the cause of the American Civil War (Excuuuuse me, The War of Yankee Aggression). Later, when pressed, she was forced to concede it was “one of the causes”. Nikki is obviously not too up-to-date on the history of her own state, the Cradle of the Confederacy, The home of Fort Sumter, the first state to formally secede drom the Union. SC’s declaration of secession contains the text string “slave” 17 times. Only TX(22) and GA (35) (not too surprising) exceed SC in the reference linked to in the URL above.
Actually, the American Civil War WAS fought for primarily economic reasons. The Crackers were too lazy to pick their own cotton, and too cheap to pay their own brothers a decent wage to do so.
Note to Nikki: Your web browser has a utility called “find” which allows you locate any text string. Try it on the website using “slave” and it will light up for you like a Christmas Tree.