Border Patrol sought extra resources in Del Rio as far back as June, union emails show
CNN
As far back as June, Border Patrol agents in Del Rio, Texas, began asking management for additional resources to more rapidly process migrants, but their calls for increased resources appear to have gone unmet until recent days when thousands and thousands of migrants were forced to wait under a bridge near the US-Mexico border.
Agents on the ground didn't predict the numbers would balloon to more than 14,000 migrants -- many of whom are Haitian -- but they witnessed and grappled with a steady increase in border crossings throughout the year.
Earlier this summer, agents began to see an increase in people crossing the river into the US, at times getting up to several hundred congregating under the bridge, which has now been seen in images and video teeming with people.