Peter Schurman, a founder and former executive director of MoveOn.org, announced Tuesday he plans to challenge California Attorney General Jerry Brown in his state's Democratic gubernatorial primary. "Our Democratic standard-bearer must be a true leader, take strong stands on the issues, and run a vigorous grass-roots campaign," .. "With our state in crisis, and our party facing billions in corporate money this fall, we can't settle for anything less." Schurman led the liberal group between 2001 and 2005; ..