The trial over President Trump's deployment of thousands of National Guard troops to Los Angeles earlier this summer reached its third and final day Wednesday.

A federal judge in San Francisco is weighing whether the Trump administration violated federal law by sending National Guard troops to accompany immigration agents on raids in Southern California. A three-day trial on the matter concluded Wednesday.

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.

Lawyers for President Donald Trump and California Gov. Gavin Newsom are set to face off Monday to determine whether the president violated a 147-year-old law when he deployed the National Guard to quell anti-immigration enforcement protests in Los Angeles – against the wishes of the governor.

The Pentagon is ending the deployment of all but 250 National Guard troops that remained in Los Angeles who were originally sent to the city to deal with protests over the Trump administration’s immigration crackdown.

Trump announced plans on Monday to send 800 National Guard troops to Washington D.C., as his California guard deployment is on trial.

A fight between President Donald Trump and Democratic Gov. Gavin Newsom over the National Guard's presence in California will come to a head in a three-day trial.

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