On Monday, the Trump administration made a move that left thousands of migrants heartbroken. The CBP One app, a tool created under President Biden’s administration to help asylum-seekers apply for legal entry into the U.

On his first day in office, President Trump shut down the CBP One mobile application that facilitated the legal entry of migrants into the U.S. at certain ports of entry. Why it matters: Thousands of people are left stranded in Mexico,

The CBP One app has been highly popular, functioning as an online lottery system that grants appointments to 1,450 people daily at eight border crossings. These individuals enter the U.S. under immigration "parole," a presidential authority that Joe Biden has exercised more frequently than any other president since its creation in 1952.

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.

CBP One — the government-run app for asylum seekers at the border — has been abruptly shuttered after a series of executive orders signed by President Donald Trump.

U.S. Customs and Border Protection estimates nearly 300,000 migrants are waiting on the Mexican side of the border trying to seek asylum.

Just hours after the inauguration, migrants with CBP One appointments along the U.S.-Mexico border learned that all CBP One appointments were canceled.

"The first 100 days are going to be the most aggressive, change oriented policy proposals and procedures that we've ever seen," KOAT political expert Brian Sanderoff said.

About 200 migrants who had their CBP One immigration appointments canceled when President Trump was sworn into office are refusing to leave the San Ysidro border checkpoint until they are seen.

In a move fulfilling one of now-President Donald Trump’s campaign promises, the Trump administration shuttered the use of CBP One, a President Joe Biden-era app meant to help process migrants seeking to apply for asylum in the U.S.

Trump administration officials minutes after the new president took office on Monday shut down a mobile app for migrants to make appointments at the U.S.-Mexico border. By shutting down the CBP