In 2016, Republican presidential candidate Donald Trump proposed building a border wall along the United States-Mexico border. Trump's proposed wall, if passed, would consist of "of hardened concrete, and ... rebar, and steel" across the southern border, including Brownsville. On January 25, 2017, days after assuming office, Trump issued Executive Order 13767, directing construction for a border wall. Brownsville was also the center of controversy surrounding the Trump administration's policy of separating children and parents who entered the country unlawfully. The issue surrounded Casa Padre, the largest juvenile immigration detention center in America, which is located within Brownsville's city limits.