2018 San Francisco mayoral special election
Ed Lee, who was appointed Mayor of San Francisco in 2011 following Gavin Newsom's election as Lieutenant Governor of California, elected to a full term in 2011, and reelected in 2015, died of cardiac arrest on December 12, 2017. London Breed, the President of the San Francisco Board of Supervisors, became the city's acting mayor.
Ed Lee (politician)
In 2010 a vacancy in the office of mayor was impending when incumbent Gavin Newsom was elected as Lieutenant Governor of California. Under the San Francisco City Charter, vacancies in the mayoral office are filled by a majority vote of the Board of Supervisors, in which each supervisor is barred from voting for themselves. Speculation about possible appointees and debate on whether or not the old Board of Supervisors should cast the vote for the new mayor soon followed Newsom's election as lieutenant governor. (Four old supervisors were term-limited and four new people were elected in the 2010 election to take their place.)