FILE - In this Jan. 2, 2019, file photo, a girl holds a balloon as she walks among tents inside an empty warehouse used as a shelter set up for migrants in downtown Tijuana, Mexico. The Trump administration expects to launch a policy as early as Friday, Jan. 25, 2019, that forces people seeking asylum to wait in Mexico while their cases wind through U.S. courts, an official said, marking one of the most significant changes to the immigration system of Donald Trump's presidency. (AP Photo/Daniel Ochoa de Olza, File)