A Border Patrol vehicle sits near the border wall separating Mexicali, Mexico from Calexico, Calif., Tuesday, July 21, 2020, in Calexico. The city of 1 million just to the south brings tens of thousands of people daily to cross. Janette Angulo, Imperial County’s public health director, estimates the population doubles during the day in winter, making the official count deceptively low. (AP Photo/Gregory Bull)