The Trump administration has not publicly said how many immigration detention beds it needs to achieve its goals, or what the cost will be.

Trump’s rhetoric focuses on mass roundups as a spectacle of fear, but the criminal legal system remains the primary tool for carrying out deportations. The new administration has already stated its intention to expand 287 (g), agreements that deputize local police as immigration enforcers.

Tom Homan, Trump's border czar, has described what the operation might look like and who could be involved in immigration enforcement.

Mexico was raising sprawling tents on the U.S. border Wednesday as it braced for President Donald Trump to fulfill his pledge to reverse mass migration

U.S. border agents have been instructed to summarily deport migrants crossing into the country illegally without allowing them to request legal protection.