The unexpected death of Mayor Ed Lee has thrown even more intrigue into what was becoming a crowded race to replace him in November 2019. A number of longtime San Francisco politicians were eyeing the desk in City Hall’s Room 200. Board of Supervisors President London Breed is now acting mayor and the 11 members of the board may vote to retain her or choose another candidate to serve until the June 2018 election. The next regularly scheduled mayoral election is in 2019. Mark Leno, who has served as a supervisor, state senator and assemblyman, has already announced his candidacy for mayor in 2019.