U.S. President Donald Trump said on Monday he would support the arrest of California Governor Gavin Newsom over possible obstruction of his administration's immigration enforcement measures, amid protests in the state.

Newsom filed suit against the White House on Monday over its decision to deploy the National Guard. California Attorney General Rob Bonta says the state’s sovereignty was “trampled” by President Donald Trump when he ordered National Guard troops to the immigration protests in Los Angeles, The Associated Press reported.

Newsom said he believed the president was required to coordinate with the state’s governor before ordering such a deployment.