MSNBC Legal Correspondent Lisa Rubin joins MSNBC’S Lawrence O’Donnell to discuss the argument Trump’s lawyers presented in the appeals court hearing on deploying the California National Guard: that the president “has the authority to deploy the national guard whenever he is unable to execute the forces with regular law.

A panel of three appellate judges in San Francisco will hear arguments by attorneys for President Trump and California Gov. Gavin Newsom on Tuesday, over whether the president has the authority to send in the National Guard to Los Angeles without the governor's consent.