US crackdown on nonessential border travel causes long waits Cars wait in line to enter the United States at San Diego's San Ysidro border crossing, Tuesday, Aug. 25, 2020, in Tijuana, Mexico. A Trump administration crackdown on nonessential travel coming from Mexico amid the coronavirus pandemic has created massive bottlenecks at the border, with drivers reporting waits of up to 10 hours to get into the U.S. (AP Photo/Elliot Spagat)
Pedestrians wait in line to enter the United States at San Diego's San Ysidro border crossing Tuesday, Aug. 25, 2020, in Tijuana, Mexico. A Trump administration crackdown on nonessential travel coming from Mexico amid the coronavirus pandemic has created massive bottlenecks at the border, with drivers reporting waits of up to 10 hours to get into the U.S. (AP Photo/Elliot Spagat)
Pedestrians wait in line to enter the United States at San Diego's San Ysidro border crossing Tuesday, Aug. 25, 2020, in Tijuana, Mexico. A Trump administration crackdown on nonessential travel coming from Mexico amid the coronavirus pandemic has created massive bottlenecks at the border, with drivers reporting waits of up to 10 hours to get into the U.S. (AP Photo/Elliot Spagat)
Taco vendor Christian Mendoza works as cars wait to enter the United States at San Diego's San Ysidro border crossing Tuesday, Aug. 25, 2020, in Tijuana, Mexico. A Trump administration crackdown on nonessential travel coming from Mexico amid the coronavirus pandemic has created massive bottlenecks at the border, with drivers reporting waits of up to 10 hours to get into the U.S. (AP Photo/Elliot Spagat)
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Cars wait in line to enter the United States at San Diego's San Ysidro border crossing, Tuesday, Aug. 25, 2020, in Tijuana, Mexico. A Trump administration crackdown on nonessential travel coming from Mexico amid the coronavirus pandemic has created massive bottlenecks at the border, with drivers reporting waits of up to 10 hours to get into the U.S. (AP Photo/Elliot Spagat)