Our Border Patrol agents have seen firsthand the success of a border wall in Yuma, Ariz. — which serves as a prime example of how investments in personnel, technology and a border wall can turn the tide against a flood of illegal immigration and secure our homeland. For years, Yuma sector was besieged by chaos as a nearly unending flood of migrants and drugs poured across our border. Even as agents were arresting on average 800 illegal aliens a day, we were still unable to stop the thousands of trucks filled with drugs and humans that quickly crossed a vanishing point and dispersed into communities all across the country. It is hard for anyone familiar with Yuma sector today to imagine this scene. That’s because nearly a decade ago, a group of bipartisan lawmakers came together to protect the homeland, save innocent lives, and build a physical barrier across the border.