Noem vowed Friday to immediately halt the controversial mobile app that lets migrants register to enter the US.

After President Donald Trump issued several executive orders related to border security on his first day in office, the Department of Homeland Security began implementing them the same day. Trump was the first president in modern history to declare an invasion at a U.

"Let me ask you this, will you work with President Trump to reinstate the Remain in Mexico program that the President had in place in his first term, which does so much to ensure that those who would seek to abuse our asylum system are not allowed into the country,

DHS could request up to 10,000 troops to help with efforts along the U.S.-Mexico border, according to an internal Border Patrol memo obtained by ABC News.

U.S. officials say the Pentagon will begin deploying as many as 1,500 active duty troops to help secure the southern border in the coming days

Migrants allowed into the U.S. temporarily under certain Biden administration programs can be quickly expelled, according to a memo sent by the Trump administration's acting secretary of homeland security.

The order for DHS employees to return to work falls in tandem with Trump’s mass deportation plan announced in his inaugural address Monday

After his swearing-in on Monday, Trump will declare a national emergency at the U.S.-Mexico border and tap the military to deploy there to build additional barriers. He will also roll back many of President Biden’s actions in an attempt to essentially close off the border from any migrants seeking to make asylum claims.

The Pentagon will begin deploying as many as 1,500 active duty troops to help secure the southern border in the coming days, officials said.

South Dakota Gov. Kristi Noem, Donald Trump’s pick to lead the agency central to his vision of cracking down on illegal immigration, faced senators Friday at confirmation hearing that will be her first chance to lay out her vision for the sprawling Department of Homeland Security.

Trump signed the Laken Riley Act Wednesday, the first piece of legislation the president has signed since his inauguration.

Learn about ICE in U.S. law enforcement, its role in immigration enforcement, and how it affects border security, immigrants, and national safety.