A plaque marks the U.S. border on the Paso Del Norte Port of Entry bridge which connects the U.S. and Mexico on July 23, 2018. As many as 2,551 migrant children ages 5 to 17 were separated from their families after they crossed into the U.S. from Mexico along the border.

A plaque marks the U.S. border on the Paso Del Norte Port of Entry bridge which connects the U.S. and Mexico on July 23, 2018. As many as 2,551 migrant children ages 5 to 17 were separated from their families after they crossed into the U.S. from Mexico along the border.