President Donald Trump is moving swiftly to act on his immigration promises with little internal restraint, determined to test the bounds of his executive authority in order to fulfill the promises of his reelection campaign.

The demonstrations featured more violence and arrests, with some protesters throwing objects at law enforcement, and authorities responding with less-lethal munitions.

Tensions in Los Angeles escalated Sunday night as thousands of protesters took to the streets in response to President Donald Trump’s deployment of the National Guard, blocking off a major freeway and setting self-driving cars on fire as law enforcement used tear gas,