The Trump administration is pushing forward with a colossal public works project in Northern California — heightening the towering Shasta Dam the equivalent of nearly two stories. The problem is that California is dead-set against the plan, and state law prohibits the 602-foot New Deal-era structure from getting any taller. But in these times of unprecedented tension between Washington and California, the state’s objection to this $1.3-billion project near the Sacramento River is hardly proving a deterrent.