I don’t see anything conclusive in this. Yes, there’s a noise which could be a shart but the facial expressions from green lady don’t match. If it was that bad the expression would’ve been more of surprise than horror.
Don’t get me wrong, I hope Trump dies very soon, but this simply means he’s an old man, if the pooping part is true, and that’s because he is an old man.
Let’s vilify him for his actual corrupt actions not those of his aging corpus.