Berlin, New Hampshire — Republican presidential candidate and former South Carolina Gov. Nikki Haley declined to mention slavery as the cause of the Civil War during a campaign event Wednesday evening in Berlin, New Hampshire. "What was the cause of the United States Civil War?" a male attendee asked Haley during a town hall. The former U.S. ambassador to the United Nations appeared to be taken aback by the question and paused before answering. "Well, don't come with an easy question," Haley joked. "I think the cause of the Civil War was basically how government was going to run, the...