Trump Administration Begins Border Wall Construction in Southern Arizona

The Trump administration began constructing a section of the U.S.-Mexico border wall in southern Arizona on August 26, 2026. The project is part of a $46 billion initiative to install 30-foot steel bollard walls and vehicle barriers. Texas-based SLSCO Ltd. is executing the construction, having received over $390 million in funding from the Department of Homeland Security since 2023.

U.S. Customs and Border Protection (CBP) defended the project as a necessity to close a dangerous smuggling and trafficking corridor. However, the Tohono O'odham Nation accused the government of trespassing on sacred tribal lands. Tribal officials claim that armed CBP agents used vehicle blockades to prevent tribal police from removing contractors who entered tribal land to conduct soil sampling and other activities.

While U.S. District Judge Richard Leon previously ruled that construction is permitted within the federally owned Roosevelt Reservation buffer zone, the Tohono O'odham Nation maintains that accessing this zone via tribal land is illegal. Tribal leaders argue the wall will cause significant devastation to mountain peaks and sacred indigenous sites and are exploring further legal action.