Among the problems: an overall decline in the number of Border Patrol agents over recent years and severe challenges in attracting new people to remote locations along the border. But while the Trump administration has tried to hire more Border Patrol agents, it has fallen woefully short. In 2017, the year Trump took office, there were 19,437 Border Patrol agents patrolling the nation's borders. But that hasn't happened, and as of early February 2019, there were 19,443 Border Patrol agents, according to CBP data provided to the US Government Accountability Office. Massive backlog in immigration courtsThe US has a separate court system within the Justice Department -- which is overseen by the Executive Office for Immigration Review -- for adjudicating immigration cases.

Source: CNN March 17, 2019 12:22 UTC