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.

On Monday, Trump, a Republican, sent 700 U.S. Marines to Los Angeles to guard federal buildings as protests there continued. The marine battalion adds to California National Guard units Trump had already sent to the city to quell protests in defiance of Democratic Gov. Gavin Newsom.

As President Trump delivers on his promise to deport millions of immigrants, tough, new tactics are being met with growing community resistance.