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.

State and local leaders across the country are bracing for a tidal wave of aggressive immigration policies and possible mass deportations that President Donald Trump has vowed to enact in the hours and days following his inauguration Monday.

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”.

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.

In line with Trump’s edict, CNN’s Natasha Bertrand, Priscilla Alvarez, Haley Britzky and Oren Liebermann report. They’re expected to beef up existing operations to support Customs and Border Protection,

President Donald Trump's administration has directed U.S. prosecutors to criminally probe local officials who resist immigration enforcement efforts, intensifying a sweeping crackdown that Trump launched the day he took office.