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.

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

President Trump on Monday signed an executive order ending birthright citizenship for children of illegal immigrants, likely setting off a legal battle in the courts.

The orders include declaring a national emergency to deploy military personnel to the border, suspending refugee resettlement and ending birthright citizenship.

Migrants who waited months to cross the U.S. border with Mexico learned their CBP One appointments had been canceled moments after Donald Trump was sworn in as president.

The president is making good on his campaign promise with attempts to beef up security at the border and limit immigration.

President Donald Trump began his term by taking a series of sweeping immigration executive actions Monday that included declaring a national emergency at the US southern border, immediately ending use of a border app called CBP One that had allowed migrants to legally enter the United States,

President Donald Trump has shut down the CBP One app, which was designed to help migrants apply to enter the U.S. legally as asylum-seekers.

Hours after the Pentagon announced that it would send 1,500 active duty troops to the U.S.-Mexico, reports surfaced that the number was actually 10,000.

The Trump administration cancelled a program aimed at easing the process of applying for asylum, leaving thousands of asylum-seekers disappointed and unsure of what to do next.

The app has come under scrutiny in the past from Republicans, with some stating it has been used to hide illegal immigration.