Gloria release a statement announcing his decision shortly after noon. He was the third prominent potential candidate to take his name out of consideration Tuesday.
“It has become clear to me that the problems left by Bob Filner are substantial and serious,” Gloria said in the statement. “The enormous task of cleaning up City Hall while ensuring District Three is represented requires me to lead a focused team effort that produces quick results for San Diego.”
Earlier, former Councilman Carl DeMaio and San Diego County Supervisor Ron Roberts announced that they would not run in the special election to replace Filner, who resigned in disgrace on Friday.
Councilman Kevin Faulconer said he will announce his decision about a mayoral bid on Wednesday in a news conference on Harbor Island.
As of Friday, 15 people had declared their intention to run. Among the best known is former Assemblyman Nathan Fletcher, who finished a close third in the June 2012 mayoral primary behind Filner and DeMaio.
Fletcher, an Independent who left the Republican Party after it endorsed DeMaio last year, corralled the first endorsements in the race to replace Filner. On Thursday, he announced endorsements from the unions that represent the city’s white collar workers and firefighters.