over same-sex marriage is heating up this weekend. about an hour ago republican presidential candidate mitt romney defended that position on the issue during a commencement speech at liberty university of evangelical christian college in virginia. culture, what you believe, how you value, how you live matters. now, as fundamental as these principles are, they may become topics of democratic debate from time to time, so it is today with the enduring institution of marriage, marriage is a relationship between one man and one woman. now, several prominent african-american pastors are also voicing their opposition to the president s decision to support gay marriage. and the issue is expected to be a focus of sermons in churches all across the country this mother s day. ahead of sunday s services a group of civil rights leaders, include al sharpton and joseph lowery have written an open letter to the african-american community embracing the president s decision. it says, we c