Forget the "callsign" -- show me a video of Biden getting into (or out of) the well known ("Presidential") Boeing 747-200.
I haven't found one.
I have seen one photo of a "photoshopped" Biden standing in the doorway of the Presidential Boeing 747-200.
But it's fake.
Show me video! (Or it didn't happen.)
His ears were different again!
Tell me with a guy that shuffles when walking and had a boot on his foot a month ago and 70 years old can take those steps in that video
The splicing of it is very suspect too lol as soon as the door shuts it cuts to the plane taking off.
Answer: He can't.