Houston's embattled equal rights ordinance took another legal turn this week when it surfaced that city attorneys, in an unusual step, subpoenaed sermons given by local pastors who oppose the law and are tied to the conservative Christian activists that have sued the city. Opponents of the equal rights ordinance are hoping to force a repeal referendum when they get their day in court in January, claiming City Attorney David Feldman wrongly determined they had not gathered enough valid signatures to qualify for the ballot. City attorneys issued subpoenas last month during the case's discovery phase, seeking, among other communications,...