The Trump administration is losing its longtime base over the continuing dispute over the southern border wall. After years of shifting goals, this border issue is exposing unaddressed fissures in the foundation of President Donald Trump’s support.

In West Texas, the Trump administration is poised to begin construction on another installment of a 30-foot border wall with paved roads, vehicle barriers, and border protection technology. These new construction projects aim to improve border security near Big Bend National Park and Big Bend Ranch State Park. Former Secretary of Homeland Security Kristi Noem ordered this installment at the national park before her departure in March, the Washington Examiner reported.