. >> law professor dale carpenter has studied the issue of gay marriage. he's with the no campaign, which includes civic and gay rights groups and a growing number of churches sympathetic to what they say is equity for gay couples. but carpenter admits many people are reluctant to redefine an age-old social institution. >> i think for a lot of people there's a strong religious conviction that god made marriage and marriage is for one man and one woman. this year as we come for the rosary parade, we are thinking about the beauty of the sacrament of marriage. >> for supporters of the amendment, that conviction is at its core. >> marriage matters to every minnesotan, whether or not we personally choose to marry. intuitively, we know it is the natural way we bring together men and women to conceive and raise the next generation. >> minneapolis st. paul catholic archbishop john nienstedt has spearheaded the pro-marriage amendment campaign, appropriating more than $1 million and delivering public messages like this one. >> what will happen to children growing up