Just an observation, maybe nothing, but….
Supposedly the temperature in DC on "Inauguration Day" was "frigid" - about 28 - 32 degrees F from what I have found.
You will normally be able to see your "breath" in the air when it is that cold, when you talk or breathe out heavily.
Although from the looks of it (like Bernie with his mittens) it looked pretty cold, I didn't see breath coming from anyone, as you normally would for any temperature under 45 degrees F.