Gavin Newsom (Getty)

San Francisco’s Democratic Mayor, Gavin Newsom , on Tuesday officially announced his intention to run for governor of California in 2010.

Newsom, who had been operating an exploratory campaign for the open seat race, used multiple communication formats to declare his intention to run.  

“I’m running for Governor because California needs a new direction,” Newsom said in a statement . He also reached out to supporters through Twitter, Facebook, and YouTube.