If he shifted any more weight to his rear foot he probably would have pulled the trigger and fell over.
The video is apparently from the Bi-Annual Knob Creek Machine Gun shoot in West Point Kentucky.
It’s hard to tell from the video, but the gun appears to be a suppressed MAC-10 or M-11 (chambered in 9mm as the description says). The AR-15 stock kit is a nice touch.
I don’t follow politics at all, but Rand Paul seems to be every bit as interesting as his father.
Rand Paul’s website – HERE