The Insurrection Act of 1807 allows the president to deploy the military to enforce laws on US soil, including arresting migrants.

The Insurrection Act of 1807 is a federal law that allows the president ... up an executive order in the Oval Office of the White House on January 20 in Washington, D.C. President Donald Trump ...

Historically, the Insurrection Act of 1807 has only been invoked a handful ... courting key candidates in critical battleground House and Senate races while leaning hard on an issue that could ...