Abbott's announcement did not detail where the troops were sent, but some were seen at a protest Wednesday night in downtown San Antonio near the Alamo.

4:47 p.m. EDT The Trump administration asked the judge to reject Newsom’s request and allow it to respond by Wednesday, calling Newsom’s attempt to block the deployment of federal troops “legally meritless” and saying it would jeopardize the safety of Homeland Security personnel and interfere with the government’s ability to carry out operations.

The Guard’s arrival marks a potentially volatile phase in Trump’s push to ramp up deportations and in his contentious relationship with state and local authorities.

The Marines are expected to be serving alongside National Guard troops within the next 48 hours, according to the U.S. Northern Command.

The Trump administration has tried to portray the demonstrations in California against its anti-immigrant raids as chaos at a scale worthy of sending in the national guard. The Los Angeles Police chief is pushing back.