Past the 100-mile enforcement zone, Border Patrol agents, like officers working for ICE or the U.S. Customs and Border Protection Office of Field Operations, are classified as immigration officers ...

It’s unclear how many Border Patrol agents were deployed to Los Angeles. Barbara Davidson/NYPost President Trump later deployed 2,000 National Guard troops and 700 Marines to control the situation.

U.S. Customs and Border Protection faces a possible staffing shortage in the lead-up to Trump's departure from office, with 9/11-era hires retiring.

Paul Perez, president of the National Border Patrol Council — the union representing more than 16,000 frontline agents — joined the Border Patrol in 1997 after serving in the U.S. military.