The southern city of Houston has become the largest US metropolis to elect an openly gay mayor when Annise Parker, an open lesbian, claimed a solid victory over her rival. "I know what this win means to many of us who thought we could never achieve high office," she said in her victory speech, at which she introduced her partner Kathy and their three children, according to the Houston Chronicle. "I understand, because I feel it, too. But now, from this moment, let us join as one community," said Parker, 53. According to local election data, Democrat Parker won about...