Trump's order is premised on the idea that increasing Delta pumping would make more water available for the rest of California. But experts say its more complicated than that.

Donald Trump signed a wide-ranging executive order demanding federal and state officials deliver more water and other resources to southern California.

President Donald Trump is asserting more federal government control over water management decisions in California and ordering US officials to override local authorities, casting the steps as necessary to boost the state’s firefighting capabilities.