If President Trump deploys troops to other American cities, experts say it would be a clear departure from founding principles and invite a legal challenge.

A federal judge is hearing arguments on whether military troops deployed this summer by the Trump administration to Los Angeles violated a federal law that bars troops from conducting law enforcement duties within the country.

Lawyers for California and the federal government are facing off for a second straight day over President Trump's use of the National Guard in Los Angeles. Political strategists Leslie Sanchez and Vedant Patel join "The Takeout" with analysis.