Washington — Approximately 270,000 migrants are estimated to be waiting on the Mexican side of the U.S.-Mexico border, hoping to get an appointment to enter the U.S. through a system that President-elect Donald Trump has vowed to end, according to government figures obtained by CBS News. U.S. Customs and Border Protection estimates that around 270,000 migrants in Mexico are trying to get an appointment distributed by a government app known as CBP One, which the Biden administration has converted into the main gateway to the American asylum system. As of Jan. 16, nearly 919,000 migrants had been allowed into the...