force one and greeted immediately by throngs of border patrol agents, ice agents, family members, supporters. all of which on camera and off camera when we talked to him fully support this president. many of them are not getting paid. they want to see the wall belt. they believe, especially in the rio grande valley sector a wall is absolutely necessary. now, the president then went to a round table and then straight to the rio grande bridge near the border where he spoke with many of the agents there, including raúl ortiz. he is the acting director of the rio grande valley sector. it s about 500 miles of the border he is in charge of. they talked about the hard stats, the reality. the president asked about walls and fencing and whether they worked. we then had an opportunity to sit down with raúl ortiz later in the day and asked him about that interaction and what he said to the president. here is what the real expert says about walls and whether they work on the border. listen. we