Trump signing the order on Day 1 is "testing the outer limits of executive branch power in the immigration sphere," Erin Corcoran, executive director of Notre Dame University’s Kroc Institute for International Peace Studies, said.

The President is recasting migration as a form of “invasion,” broadening his already expansive powers and making anyone in the U.S. who’s undocumented a potential target.

President Donald Trump has promised swift action on immigration, asylum and border security as he takes office today.

Newly sworn-in U.S. President Donald Trump said on Monday that he would declare illegal immigration a national emergency, send troops to the U.S.-Mexico border, and reinstate his "remain in Mexico" policy as part of a sweeping immigration crackdown.

The Trump administration announced Friday that it is expanding a fast-track deportation authority nationwide, allowing immigration officers to deport migrants without appearing before a judge.

ICE has already begun rounding up hundreds of illegal immigrant criminals across the country just two days into the Trump administration’s aggressive push — with one Boston-area Haitian gang

The notion that America is being invaded has become the defining theme of Mr Trump’s immigration policy. Hours after his inauguration the president issued ten executive orders on immigration and border enforcement “to repel the disastrous invasion of our country”.

U.S. military and police forces began the first deportation flights for illegal immigrants under President Donald Trump's hardline immigration crackdown nationwide and particularly at the southern border.

The Department of Homeland Security is opening the door to the parole status of migrants to be reviewed, leading to their eventual removal from the country.

The U.S. southern border has seen a sharp drop in migrant encounters entering between ports of entry at the southern border, according to a CBP source.