Romney has expressed support for constitutional amendments at both the state and federal level guaranteeing constitutional protections to the unborn from the moment of fertilization. During the 2008 presidential campaign, Romney said that if elected president, he would support an amendment to the U.S. Constitution that would legally define personhood as beginning at conception. In the 2012 presidential campaign, he said that, had he as governor been presented with a state constitutional amendment to define life as beginning at conception, he would have supported it.