Former first lady Laura Bush has broken with her husband on the premier social issues of his administration and said she backs gay marriage and abortion. After more than eight years of silence on the controversial issues, Mrs. Bush said in an interview with CNN's Larry KingTuesday, that gay marriage and abortion were points of contention with her husband, former President George W. Bush. Mrs. Bush in recent weeks has been promoting her memoir "Spoken from the Heart," in which she writes about her life both before and after becoming first lady. In response to a question about gay marriage,...