450 miles of border wall by next year? In Arizona, it starts

Government contractors erect a section of Pentagon-funded border wall along the Colorado River, Tuesday, Sept. 10, 2019 in Yuma, Ariz. The 30-foot high wall replaces a five-mile section of Normandy barrier and post-n-beam fencing along the the International border that separates Mexico and the United States. Construction began as federal officials revealed a list of Defense Department projects to be cut to pay for President Donald Trump's wall.