Muni director to resign by August amid pressure by mayor

Ed Reiskin, who's led the San Francisco Municipal Transportation Agency for almost eight years, is stepping down from his post this summer amid pressure from Mayor London Breed. The agency oversees Muni, as well as the city's parking, traffic, bicycle and pedestrian safety and other transportation regulation. The city's subway system — which sees 700,000 boardings on an average weekday — in particular has been riddled with delays and closures, which escalated on Friday when underground rail…...