California Gov. Gavin Newsom had sued Trump in an attempt to block the deployment of federal troops in the city, which Newsom has called a “serious breach of state sovereignty.”

The Trump administration faces a legal challenge to its deployment of the military to protests. Tensions flared after President Trump sent troops, and protests spread to other U.S. cities.

Newsom filed a lawsuit Monday in response to Trump ordering the deployment of roughly 4,000 National Guard members to Los Angeles following protests over his stepped-up enforcement of immigration laws. They were originally called in to protect federal buildings, and the president later ordered the deployment of 700 Marines.

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.

Soldiers mobilized by President Trump protected ICE agents on their raids in Los Angeles. The state of California said the deployment was illegal.

Homeland Security Secretary Kristi Noem pledged to carry on with the Trump administration’s immigration crackdown despite waves of unrest across the U.S.

Thousands of people in cities across the U.S. have marched to protest President Trump's immigration crackdown. In Los Angeles, the city's police chief talked about the coordination with the National Guard and Marines.