Why US judge ruled Trump's deployment of National Guard in California was illegal

A federal judge issued a temporary restraining order Thursday directing President Donald Trump to return control of the National Guard to California. National Guard members stand guard outside the Edward R. Roybal Federal Building, during a protest against federal immigration sweeps, in Los Angeles, California, U.S., June 12, 2025. REUTERS/David Ryder(REUTERS) The order, which takes effect at noon Friday, said the deployment of the Guard was illegal and both violated the Tenth Amendment and exce