London mayor may be Labour's lone bright spot in local elections

By Elizabeth Piper and Nadeem Shad LONDON (Reuters) - Labour candidate Sadiq Khan looked set on Thursday to become the first Muslim elected mayor of London, loosening the ruling Conservatives' hold on Britain's financial center after a campaign marred by charges of anti-Semitism and extremism. Opinion polls and voters suggested Labour would lose seats in some traditional strongholds, testing the authority of its new left-wing leader, Jeremy Corbyn.