California became the first state to ban most law enforcement officers, including federal immigration agents, from covering their faces while conducting official business under a bill that was signed Saturday by Gov. Gavin Newsom and swiftly denounced by Trump administration officials.

The ban is a direct response to recent immigration raids in Los Angeles, where federal agents wore masks while making mass arrests. The raids prompted days of protest and led President Donald Trump to deploy National Guard troops and Marines to the area.