The Trump administration has deployed into duty 2,000 National Guard soldiers in California, even as the state’s governor clashes with the White House over using troops to quell protests over the federal immigration crackdown.

The hearing comes after the 9th U.S. Circuit Court of Appeals granted a request by the administration last week to temporarily pause a lower court order.

The National Guard has at times detained protesters in its deployment to Los Angeles, an official said Wednesday, as demonstrations against Immigration and Customs enforcement raids spread to other major cities.