Customs and Border Protection, with its roughly 60,000 employees, falls under the Department of Homeland Security. It includes the Border Patrol, which Scott led during Trump's first term, and is essentially responsible for protecting the country's borders while facilitating trade and travel.

Rodney Scott at CBP and Caleb Vitello at ICE would work alongside Stephen Miller, who was named deputy chief of staff for policy and Tom Homan, also tapped to be a "border czar."