A federal judge ruled that President Trump’s deployment of the National Guard to Los Angeles was illegal. Former federal prosecutor and former lawyer for the DOJ’s National Security Division Brendan Ballou joins Katy Tur to explain more on the legal side of this case and why the Trump administration will “absolutely” appeal. Our next MSNBC Live event is on October 11th in New York City! Buy Tickets Now: msnbc.com/live25 For more context and news coverage of the most important stories of our day