Now, seeing these pictures, I'm wondering if he fell, or if something happened to him just before these were taken. I mean, he travels with a valet, and AFOne has attendants that could have cleaned him up, had it happened before he disembarked.
Somehow, I don't think we've heard the whole story ..."
Maybe we missed his 'little girl' prancing & he fell flat on his face while deplaning from Air Force One.
It sure would seem like something like that. Although he is dirty standing on the carpet - looks like they had left the building behind them. If so, they would have had a chance to at least run a towel or someone’s clothing to get the dirt off of his suit? Maybe it is just a play of reflections???