Tuesday 's ruling affirms a 2010 decision by a U.S. district judge in San Francisco . NEW : `` Very soon , Proposition 8 will be gone forever , '' one of the plaintiffs says . NEW : The California church says it `` regrets '' September 's ruling . Constitution supporters say they 'll appeal , and a stay remains in place . The narrowly written decision may be `` the last word '' on Mormon , N. Randy Smith says .
NEW : `` Very soon , Proposition 8 will be gone forever , '' one of the plaintiffs says . NEW : The California church says it `` regrets '' September 's ruling . Constitution supporters say they 'll appeal , and a stay remains in place . The narrowly written decision may be `` the last word '' on Mormon , N. Randy Smith says .