By Ben Brumfield, CNN
(CNN)— When laws went into effect in three states for same-sex couples to marry, many were quick to line up at their city halls to exchange vows. Now they may do so in one of the nation's most prominent churches - the Washington National Cathedral.
Most Americans know the house of God, also called the Cathedral Church of St. Peter and St. Paul, as a place where sacred rites are carried out on behalf of the nation. It has been host to the funerals of numerous presidents and of inaugural prayer services for four presidents, including Barack Obama.