...might this NOTAM be to reduce chatter/scatter for critical flights?
Maybe the Congresscritters aren’t allowed back to DC after the weekend? If there has been a finding of foreign interference in the Congressional elections, they are an illegitimate body.
What is this FlightAware screenshot supposed to show us? You won’t find Air Force One on there, it’s filtered out. With what I do I have access to a true real-time radar data feed from the FAA’s STARS system at the local TRACON, which includes most military traffic, and even I can’t see AF1. The TRACON’s system has filters for certain transponder codes and call signs. Obviously, AF1 is high on the list of operations that are filtered from the data.