San Francisco Mayor Gavin Newsom took his first official steps to run for Governor by launching an exploratory committee today. He is the first Democrat to formally do so. Attorney General Jerry Brown also plans on trying to replace Schwarzenegger and as for Los Angeles Mayor Antonio Villaraigosa, he has been "discussed as a possible candidate, although he faces reelection in 2009, which could complicate any run for higher office," says the LA Times.......