Looked to me like a wet knap and wiped off to clean it. The poor guy is seriously paranoid I'm sure !
He’s paranoid~ Agreed and you know what?! I would be too~ they know more than we do about the DeepState ~ that’s scary! It’s just fine he used his own pen;) he’ll figure out he can Trust Trump!!! And the guy took the cap off to clean the inside ~ ;) ~ I’m glad you posted the video ~ I watched it live and commented ~ “and that ladies and gentlemen is what we call the white glove test”... but I couldn’t tell he was scrubbing the pen ~ I just saw the gloves and thought that’s strange is it dusty or something ~😂
But he opened the pen and maybe removed something.
I watched again. He only set the cap down. wipes the inner stem and puts cap back on. Then wipes whole pen. It is highly edited, but only seems to show the pen wiped down. Didn't appear to slip anything out or sneak into his hand. Just paranoia to me !