The San Diego County Water Authority now supports Gov. Jerry Brown’s twin tunnels project, a $17 billion plan to carry water south from the rivers of Northern California. For five years, the Water Authority has been one of the fiercest critics of the plan. It’s worked since 2013 with environmental groups opposed to the tunnels, and it’s spent countless employee hours trying to undermine the project. Just last month, Water Authority representatives tried to prevent Southern California’s largest water agency from spending $11 billion on the project.