(CNSNews.com) - Five of the seven Republican presidential candidates participating in a debate in New Hampshire last night said they would favor a constitutional amendment to define marriage in the United States as between a man and a woman. Only businessman Herman Cain and Rep. Ron Paul said they did not favor an amendment. New Hampshire Union Leader reporter John DiStaso raised the marriage issue by asking Rep. Michele Bachmann whether she would come into the state of New Hampshire as president and campaign to overturn the state's law allowing same-sex marriage.