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.
Matt Gonzalez
In August 2003, Gonzalez ran for Mayor of San Francisco in a bid to replace outgoing two-term mayor Willie Brown. On a ballot with nine candidates, Gonzalez finished second in the primary election on November 4 behind Gavin Newsom, a Democrat and fellow member of the Board of Supervisors who had been endorsed by Brown. Gonzalez received 19.6 percent of the total vote to Newsom's 41.9 percent. Because none of the candidates received a majority, a run-off election was held on December 9.