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,

Victoria Meijia Garcia, 31, opened the CBP One app at 10 a.m. Monday as she did every day for the past several months, seeking an available appointment with an asylum official. But today, the top of the familiar homepage blared a message that filled her with dismay.

President Donald Trump on Monday officially shut down the Customs and Border Protection-run app designed to help schedule appointments for people seeking eligibility for asylum, closing off a pathway for migrants at the Southern border hoping to enter the United States.