The U.S. has built roughly 50 miles of primary border wall along the southern border, 5.5 miles of buoy barriers in the water and 13.2 miles of secondary barriers, Customs and Border Protection commissioner Rodney Scott told Congress on Thursday.
Why it matters: The $46 billion project has been stalled by contracting issues and community resistance. But Scott told Congress the effort is now "ahead of schedule and we're below budget."