Less than two weeks before voters in North Carolina go to the polls to vote on a constitutional amendment defining marriage as between a man and a woman, the main group opposing it essentially has acknowledged it will win only by changing the subject from marriage — a tactic that has been tried before in other states. The group has launched commercials saying the amendment could have a widespread negative impact, including taking away protection orders against men who abused their girlfriends. But amendment supporters say the accusations are false, and they’ve got the support of law professors at one college. “It’s a clash of values going on, and we as Christians need to stand strong on this,” says one amendment supporter.