President Donald Trump on Monday stirred the already contentious riots in Los Angeles when he advocated for the arrest of California Gov. Gavin Newsom. While addressing reporters, Trump was asked if border czar Tom Homan should follow through on Newsom’s dare to arrest the California governor.

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 plans to file suit against the Trump administration to roll back the National Guard deployment, which he called “an illegal act, an immoral act, an unconstitutional act.”