A federal judge in San Francisco will hear 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.

A federal judge will hear arguments on whether the Trump administration violated federal law when it deployed National Guard soldiers to Los Angeles.

A federal judge will hold a three-day trial to determine whether Trump's deployment of troops in California violated the 1878 Posse Comitatus Act.