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

Almost 5,000 National Guard troops and Marines have been assigned to Los Angeles — drawing stiff rebukes from state officials.

Tensions are escalating in Los Angeles after protests against Immigration and Customs Enforcement gripped the city on Sunday, with demonstrators clashing with law enforcement and setting vehicles on fire downtown.