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.

Since CBP One app was fully rolled out in January 2023, more than half a million immigrants have been admitted into the United States.

The Trump administration Monday ended use of a border app called CBP One that has allowed nearly 1 million people to legally enter the United States with eligibility to work.

As part of sweeping plans to change immigration in the United States, the Trump Administration has removed functionality from the CBP One app, a US Customs and Border Protection app used by asylum seekers to pursue legal admission into the US along the southwest border.

"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.

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

Fox News correspondent Brooke Taylor reports on President Trump's executive orders on immigration on 'Special Report.'

Migrant advocates and shelter operators in Nogales, Sonora are bracing for the impact of 10 executive orders signed within hours of President Donald Trump's Monday inauguration, including a declaratio

Officers enforcing immigration laws will now be able to arrest migrants at sensitive locations like schools and churches after the Trump administration threw out policies limiting where those arrests could happen as the new president seeks to make good on campaign promises to carry out mass deportations.