Ok, you walk into a room and EVERYONE is wearing a mask. And you are at a medical research facility. Where they research infectious diseases.
And it doesn’t dawn on you that you should mask up?
It’s not like he is meeting in some benign place, with regular folks, for a “normal” purpose?
I drilled into my kids heads when they were little: Observe what is happening around you.
Do we realize we are being told to wear a mask, not because they are effective in stopping tiny virus particles from passing through as studies suggest 97 % can get through cloth masks and 44% through “medical” grade masks but its to prevent those who have the infection, if they wear them from coughing out streams of liquid, that could land on surfaces or THEN be aerosoled.. so if Pence is tested , probably more than any person in the USA , or planet daily, then why should he have to wear a mask ?
A cluster randomised trial of cloth masks compared with medical masks in healthcare workers; “ Penetration of cloth masks by particles was almost 97% and medical masks 44%.”
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4420971/