President Donald Trump on Tuesday visited a Honeywell factory in Phoenix, Arizona.
The facility produces personal protective equipment, or PPE, including face masks.
Signs at the factory instructed mask-wearing for all.
However, neither Trump nor anyone in his retinue wore masks.
The facility also played music similar to what would be heard at a Trump rally.
The Centers for Disease Control and Prevention has recommended that everyone wear a mask or cloth face-covering when in public.
