Acting Department of Homeland Security Secretary Benjamine Huffman on Monday evening ordered all DHS employees back to work, following an executive order from President Donald Trump on his first day in office,

President Trump threatened to purge officers from the U.S. military upon returning to the White House, and his new administration has already started making leadership changes. The big picture: The first woman to lead the U.

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 Trump administration revoked a Biden-era policy that prohibited ICE arrests at or near schools, places of worship and other "sensitive locations."

When it comes to immigration, which normally falls under the Department of Homeland Security, Kristi Noem would take direction from two other people, sources tell NBC News.

The Donald Trump Administration has revoked the President Joe Biden-era memo for ICE and Border Patrol to "thwart law enforcement in or near so-called sensitive areas," according to a release from the Department of Homeland Security.

Trump promises to sign executive actions to address immigration and border security. Some will likely spark legal battles.

Current South Dakota Gov. Kristi Noem wants CISA to be “refocused” on critical infrastructure and to no longer address mis- or disinformation efforts online.

U.S. President Donald Trump’s administration announced it had rolled back Biden-era guidance that limited federal immigration arrests near sensitive locations,

Acting Department of Homeland Security Secretary Benjamine Huffman on Monday evening ordered all DHS employees back to work, following an executive order from President Donald Trump on his first day in office, according to an internal memo obtained by ABC News. The order effectively and abruptly ended teleworking at the department.

After his swearing-in on Monday, the new president will declare a national emergency at the U.S.-Mexico border, a staffer told reporters.