A federal judge on Thursday might rule on whether or not the Trump administration lawfully deployed National Guard and Marine Corps troops to Los Angeles.

The high-profile Democratic governors of Illinois, Minnesota and New York defended their states' immigration policies in a Republican-led House Oversight Committee on Thursday -- weighing in on the ongoing Los Angeles protests over immigration enforcement.

Los Angeles residents and experts say the National Guard's presence in Los Angeles in response to immigration protests is reminiscent of a long-standing dynamic in the state and around the country.