The National Organization for Marriage (NOM) said Wednesday they will launch a statewide advertising campaign in Minnesota backing Republican Tom Emmer as the only candidate for governor who supports a referendum banning gay marriage. The television ad, called "Our Most Important Civil Right," says that among the three major candidates for governor, Emmer is the only one who believes marriage is "only between one man and one woman." The group says DFLer Mark Dayton (DFL) and Independence Party candidate Tom Horner support "imposing same-sex marriage without a vote of the people."