Water officials and members of Gov. Jerry Brown’s administration rushed to seal the deal on a multibillion-dollar plan to build two tunnels to move water south from Northern California partly out of fear that Gavin Newsom could undo the whole plan if he becomes governor, newly released documents show. In fact, the jockeying was so intense, watchdog groups have alleged the Metropolitan Water District of Southern California broke state open meeting laws when it approved the project two months ago, and now Metropolitan is planning to re-vote.