The California Governor has sued the U.S. President over the mobilization of the National Guard, calling it “an unmistakable step toward authoritarianism.”

The swiftly evolving situation in the Los Angeles area over protests surrounding immigration enforcement actions has also cued up a public spat between President Donald Trump and Gov. Gavin Newsom, the California governor who has been one of the Republican president's most vocal Democratic critics.

Some 700 U.S. Marines are headed to Los Angeles, as protests targeting the Immigration and Customs Enforcement agency stretch into a fourth day.The move comes amid heightened tensions between California leaders,