A few things - deep fakes generally do face replacement only, so the jacket doesn't matter. That said...

This is the difference between the two frames using the Presidential seal as the anchor point.

Despite the body being in a different position, the face and expression are practically pixel-identical. The flags had more variation than his face, and they were stationary.

That said...

I used the provided frames, and did not pull them from the original video. Assuming these are the real frames, the chances of this happening naturally are very, very slim.