What was going on with that group of 18-25yo kids behind Trump? It looked like they were all together. At one point the black kid on the left side of the screen flipped the bird, and he was gone shortly thereafter. Then a bunch of them started texting right away. I didn't notice the exact time, but you can watch the rerun and find it. Just look for when the black kid disappears and work back a couple of minutes.

I had to take my dogs outside, and when I got back either the kids were all gone or the camera angle tilted them out of the picture.

Someone did a piss-poor job at vetting the people that would be on camera the entire rally. I wonder what really happened?