No longer just campaign trail rhetoric, President Donald Trump’s insistence that immigration to the United States amounts to an “invasion” may be critical to unlocking extraordinary powers as the administration carries out his deportation agenda.

The legislation could mean jail time and a fine for those supporting sanctuary policies designed to protect migrants.

Under international law, countries are obligated to receive their own citizens who are deported by another country. But in practice, there are often ways to push back. Countries can block deportation flights from landing, decline to issue travel documents to their citizens and refuse to acknowledge that the deportees are their citizens.

Two sources familiar with the plan told NBC News the Trump administration is considering pulling funding from TSA and redirecting it to ICE.

Trump ended use of a border app to allow migrants to enter the country on two-year permits with eligibility to work, canceling tens of thousands of appointments into early February for people stranded in Mexico. Nearly 1 million people entered the U.S. at land crossings with Mexico by using the CBP One app.

A series of immigration executive actions signed by President Donald Trump on the first day of his second term included a call for the Venezuelan Tren de Aragua gang as a global terrorist organization.

In a display of force aimed at increasing arrests and generating publicity, the administration targeted the nation’s largest city, where sanctuary policies limit cooperation with ICE.

As he returns to the Oval Office, Donald Trump has promised 'a golden age' after he was 'saved by God to make America great again.' Is his optimism justified?

A U.S. veteran and Navajo residents have been asked for identification. Critics are complaining of racial profiling as raids and deportations increase.

The Nicaraguans who keep Wisconsin’s dairy farms, restaurants and factories working are sending home their most prized possessions, bracing for potential mass deportations. “We don’t have much, but what we do have is important.