New York—In a brash, yet diverse move, New York has declared itself the first gay city in the United States, electing Wednesday, its first woman and first openly gay leader, a position widely regarded as the second-most powerful seat in city government. Christine Quinn wept several times during a passionate speech to the 51-member council, thanking her father and her partner, Kim Catullo, who looked on from the audience, making New York the most diverse city in America. “Let me say that I am incredibly proud that in the most diverse city in the world, diversity is seen as a...