Sen. Dianne Feinstein is joining forces with House Republicans to try to extend a controversial law that provides more water for Central Valley farms, but with a sweetener for the environment: help with protecting California’s rivers and fish. The proposed extension of the WIIN Act, or Water Infrastructure Improvements for the Nation Act, would keep millions of federal dollars flowing for new dams and reservoirs across the West. It would also continue to allow more water to be moved from wet Northern California to the drier south.